You are given a paragraph, a question and some answer options (associated with "A", "B", "C", "D", etc.) You need to list all the correct answer options with their associated letters (e.g. "A" can be a valid answer). Note that sometimes, more than one option can answer the question correctly and completely. In those cases, please generate all such options separated by a comma (e.g. "A, B" is a valid answer). Do not generate anything else apart from one or more of the following characters: 'A', 'B, 'C', 'D', etc.

Paragraph- Sent 1: A day at the beach.
Sent 2: When Sam woke in the morning, he was super excited!
Sent 3: Today was the day!
Sent 4: It was Sunday, the day that Sam's mom and dad had promised to take Sam to the beach.
Sent 5: Sam's grandma had given a pail and shovel to Sam to use in the sand.
Sent 6: At breakfast Sam was so excited he was wiggling in his seat!
Sent 7: Mom told Sam that they would leave when the big hand on the clock was pointing to the 10, and the little had was pointing to the 12.
Sent 8: Mom asked Sam if he would like to help make sandwiches for the trip, and Sam said that he wanted to help.
Sent 9: Dad said, "let's make a game of it, we need to make a sandwich for each of us.
Sent 10: There are three of us, so we need three sandwiches.
Sent 11: Let's count as we make the sandwiches!"Sent 12: Sam counted as mom made the sandwiches, one for dad, one for mom and one for Sam.
Sent 13: Then mom started to make another sandwich!
Sent 14: "Mom!"Sent 15: said Sam, "we have three sandwiches and that makes one sandwich for each of us."Sent 16: Sam's mom laughed, "You're right Sam!"Sent 17: Sam's mom said she was being silly.
Question: Why did Sam stop Mom from making four sandwich? (A) Because he didn't want a sandwich for himself (B) Because he didn't want to make sandwiches anymore, he wanted to go to the beach (C) Because they only needed three - one for each of them (D) They only needed 3 sandwiches.
C, D.

Paragraph- Sent 1: According to the radar reconstruction, American 77 reemerged as a primary target on Indianapolis Center radar scopes at 9:05, east of its last known position.
Sent 2: The target remained in Indianapolis Center's airspace for another six minutes, then crossed into the western portion of Washington Center's airspace at 9:10.
Sent 3: As Indianapolis Center continued searching for the aircraft, two managers and the controller responsible for American 77 looked to the west and southwest along the flight's projected path, not east-where the aircraft was now heading.
Sent 4: Managers did not instruct other controllers at Indianapolis Center to turn on their primary radar coverage to join in the search for American 77.
Sent 5: In sum, Indianapolis Center never saw Flight 77 turn around.
Sent 6: By the time it reappeared in primary radar coverage, controllers had either stopped looking for the aircraft because they thought it had crashed or were looking toward the west.
Sent 7: Although the Command Center learned Flight 77 was missing, neither it nor FAA headquarters issued an all points bulletin to surrounding centers to search for primary radar targets.
Sent 8: American 77 traveled undetected for 36 minutes on a course heading due east for Washington, D.C. By 9:25, FAA's Herndon Command Center and FAA headquarters knew two aircraft had crashed into the World Trade Center.
Sent 9: They knew American 77 was lost.
Sent 10: At least some FAA officials in Boston Center and the New England Region knew that a hijacker on board American 11 had said "we have some planes."Sent 11: Concerns over the safety of other aircraft began to mount.
Sent 12: A manager at the Herndon Command Center asked FAA headquarters if they wanted to order a "nationwide ground stop."Sent 13: While this was being discussed by executives at FAA headquarters, the Command Center ordered one at 9:25.
Sent 14: The Command Center kept looking for American 77.
Sent 15: At 9:21, it advised the Dulles terminal control facility, and Dulles urged its controllers to look for primary targets.
Sent 16: At 9:32, they found one.
Sent 17: Several of the Dulles controllers "observed a primary radar target tracking eastbound at a high rate of speed" and notified Reagan National Airport.
Sent 18: FAA personnel at both Reagan National and Dulles airports notified the Secret Service.
Question: What target remained in Indianapolis Center's airspace, then crossed into the western portion of Washington Center's airspace at 9:10. (A) The command center (B) Herndon Command Center (C) American 11 (D) Flight 77.
D.

Paragraph- Sent 1: Federal agents on Tuesday raided a South Florida office of Dr. Salomon Melgen, an eye doctor whose past issues with authorities had already entangled Sen. Robert Menendez.
Sent 2: With yellow crime tape strung up outside, men and women lugged box after box of materials from Melgen's West Palm Beach office into awaiting minivans.
Sent 3: Both members of the federal Health and Human Services department and the Federal Bureau of Investigation took part in the search, which FBI Special Agent Michael Leverock said was the second at the same Melgen clinic -- the other coming last January.
Sent 4: "As this is part of an ongoing investigation, (authorities have) no further comment/information at this time," said Leverock.
Sent 5: That means no official details as to what authorities were looking for.
Sent 6: Even if it has nothing to do with his record as a generous political donor, Tuesday's raid suggests Melgen's legal troubles and perhaps their negative impact on Menendez, the senior U.S. senator from New Jersey are far from over.
Sent 7: Confessions show sex claims were 'false smears,' senator says The doctor's lawyer contended that Tuesday's search was the government's way of getting back at Melgen, after he sued over Medicare payments.
Sent 8: Even so, Matthew Menchel, the attorney, said that Melgen will continue to work with authorities.
Sent 9: "While we believe that today's intrusion was in retaliation and there was no legitimate need for the search, the FBI's actions will not prevent Dr. Melgen from continuing his full cooperation with the government," Menchel said.
Sent 10: The doctor first came to the attention of many around Washington when The Daily Caller, a conservative website, published a report shortly before the November 2012 election citing several Dominican women who claimed they'd had sex with Menendez for money.
Sent 11: The New Jersey Democrat staunchly denied the accusation.
Sent 12: And in March, Dominican police announced three women had been paid to claim -- falsely -- that they had sex with Menendez.
Sent 13: While that part of the story died down, the episode raised questions about why and how Menendez admittedly flew to the Dominican Republic three times in 2010 on Melgen's private plane.
Question: What two departments took part in the raid on Melgen's office? (A) CIA, Health and Human Services (B) Health and Human Services, FBI (C) CIA and FBI (D) Health and Human Services and the Federal Bureau of Investigations.
B, D.