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: If you have a mass of 50 kg on Earth, what is your weight in newtons?
Sent 2: An object with more mass is pulled by gravity with greater force.
Sent 3: Mass and weight are closely related.
Sent 4: However, the weight of an object can change if the force of gravity changes.
Sent 5: On Earth, the force of gravity is the same everywhere.
Sent 6: So how does the force of gravity change?
Sent 7: It doesnt if you stay on Earth.
Sent 8: What if we travel to another planet or moon in our solar system?
Sent 9: Look at the photo of astronaut Edwin E. Aldrin Jr. taken by fellow astronaut Neil Armstrong in the Figure.
Sent 10: They were the first humans to walk on the moon.
Sent 11: An astronaut weighs less on the moon than he would on Earth.
Sent 12: This is because the moons gravity is weaker than Earths.
Sent 13: The astronauts mass, on the other hand, did not change.
Sent 14: He still contained the same amount of matter on the moon as he did on Earth.
Sent 15: If the astronaut weighed 175 pounds on Earth, he would have weighed only 29 pounds on the moon.
Sent 16: If his mass on Earth was 80 kg, what would his mass have been on the moon?
Sent 17: [Figure 3].
Question: How does the force of gravity change? (A) It changes with change in weight (B) It changes with change in mass (C) The force of gravity changes depending on where you are in the solar system (D) The force of gravity never changes (E) This is because the moons gravity is weaker than Earths- it changes when you go to a place with less gravity.
B, C, E.

Paragraph- Sent 1: One evening , Felix serves as a conductor to four singing cats .
Sent 2: Meanwhile at a house only a few yards away , a hefty man is napping on a chair but gets awakened by their act .
Sent 3: To silence them , the man grabs and rolls out bowling ball , knocking Felix and the other cats off their feet .
Sent 4: Felix , however , still insist to go on performing as he plays a flute and his friends dance .
Sent 5: Awakened once more , the man takes out an ether sprayer and showers its contents onto the cats .
Sent 6: While his friends fall into a snooze , Felix decides to have his sleep at home .
Sent 7: Felix enters his apartment , and lies on the sofa .
Sent 8: But before he can rest long enough , his dwarf master calls him over .
Sent 9: Felix comes in and hears about the dwarf's complaint about an insomnia problem .
Sent 10: To assist his master , the cat offers a glass of warm milk but to no effect .
Sent 11: The dwarf is still unable to sleep , and therefore craves for some entertainment instead .
Sent 12: Felix then plays a clarinet , and the toy soldiers start dancing to his music .
Sent 13: After moving around for a few moments , one of the little soldiers fires a small cannon , piercing a picture on a wall with its projectile .
Sent 14: The dwarf was amazed by the presentation , and asks Felix to handover the cannon .
Sent 15: When Felix gives it and suddenly turns around , the hostile dwarf aims the small weapon at him and fires .
Sent 16: Felix was struck at the back and frightenedly flees the apartment .
Sent 17: Out in the streets , Felix looks for suitable resting places .
Sent 18: He then climbs up a telephone pole , and lies down on a set of pants hanging on one of the lines .
Question: Does Felix play the 'flute' or the 'clarinet'? (A) None (B) Flute (C) Both.
C.

Paragraph- Sent 1: Adrienne Saunders is happily married to her art dealer husband , Jack .
Sent 2: They have a daughter named Mary .
Sent 3: Adrienne hears from a friend that she thought she saw Jack in town when he claimed to be on an out of town business trip .
Sent 4: Adrienne confronts him , but he denies being in town , and their lives continue .
Sent 5: Soon after a museum curator is mysteriously murdered , and a relic that Jack bought for the museum is revealed to be a fake .
Sent 6: Jack is placed under suspicion , and then Adrienne receives word from the police that Jack perished in a car accident .
Sent 7: In trying to wrap up Jack 's affairs , Adrienne begins to suspect that her husband had switched identities with a high school classmate , Frank Sullivan .
Sent 8: When she sees a high school yearbook picture of her husband attributed to Sullivan , she is convinced .
Sent 9: She tracks down a relative of Saunders , who confirms that Frank and Jack were inseparable in high school .
Sent 10: After Jack died , the relative never saw Frank again .
Sent 11: She explained that Frank 's father was an alcoholic and that his mother worked as a toll booth operator .
Sent 12: She directs Adrienne to Frank 's mother , who lives in a rundown apartment in Brooklyn .
Sent 13: Frank 's mother bitterly receives the news that she has a granddaughter , telling Adrienne that Frank was always selfish and that he never looked in on her .
Sent 14: A stalker lurks at Adrienne 's loft .
Sent 15: He comes in to Adrienne 's bed while she is asleep and caresses her .
Sent 16: He watches Mary , who is spooked by the man in her room at night .
Question: Why is Adrienne spooked in her room at night? (A) The wind (B) A stalker (C) Adrienne is spooked when sees a man stalking her while she is asleep in her bedroom at night.
B, C.