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.

Ex Input:
Paragraph- Sent 1: Crew members ran for their lives when overhanging metalwork crashed onto a stage in a Toronto park Saturday afternoon, pinning and killing one man, authorities said.
Sent 2: The collapse happened around 4 p.m., one hour before spectators were set to begin streaming in for a concert by the alternative rock group Radiohead.
Sent 3: Several people were on the stage at the time, preparing for the show, when scaffolding-like material towering about 50 feet above collapsed.
Sent 4: "Unfortunately, four people were hurt," Toronto police Constable Tony Vella said.
Sent 5: "The remainder of the people, when they heard the stage coming (down), ran from the area."Sent 6: Firefighters arrived to find one man "trapped under the structure," said Toronto fire Platoon Chief Tony Bellavance.
Sent 7: They helped to extricate the man, then moved away from what was then still considered an "unstable structure," Bellavance added.
Sent 8: Paramedics, who happened to be at the scene in preparation for the concert, "immediately rendered aid," according to on-site Toronto Emergency Medical Services commander Peter Rotolo.
Sent 9: The victim -- who has not been identified, amid efforts to contact his next of kin -- was pronounced dead at the scene.
Sent 10: Police said he was in his 30s.
Sent 11: Another man who suffered serious injuries due to the collapse was transported to Toronto's Sunnybrook Hospital, Ian McClelland of the city's EMS department said.
Sent 12: The 45-year-old man suffered a head injury that isn't considered life-threatening, according to Toronto police.
Sent 13: Two other men with minor injuries were assessed and released, McClelland said.
Sent 14: Aerial footage afterward showed that some metal framing -- some of it covered in a blue material -- crumpled on the stage, which was in front of a large grassy area.
Sent 15: Some of the scaffolding-like material remained standing, reaching about 50 feet in the sky.
Sent 16: The stage was being set up especially for the Radiohead concert, Vella said.
Sent 17: At the time it came down, the weather was good with no storm rolling through or significant winds, added fellow police Constable Harrison Ford.
Question: What time was it when overhanging metalwork crashed onto a stage in a Toronto park Saturday afternoon? (A) 6:00 PM (B) After 4pm (C) Around 8pm (D) 4 p.m (E) Around 4pm (F) Exactly 4am (G) 4:00 PM.

Ex Output:
D, E, G.

Ex Input:
Paragraph- Sent 1: As food is pushed along, it undergoes digestion.
Sent 2: Digestion is the process of breaking down food into nutrients.
Sent 3: There are two types of digestion: mechanical digestion and chemical digestion.
Sent 4: Mechanical digestion occurs when large chunks are turned into smaller chucks.
Sent 5: Perhaps not surprisingly, this happens when you chew your food.
Sent 6: Once you swallow the food, your stomach also does some of this work.
Sent 7: Chemical digestion occurs when food is broken down into useful nutrients.
Sent 8: This is a chemical process that begins as you start to chew your food.
Sent 9: The saliva in your mouth starts this process.
Sent 10: Once you swallow, the acid in your stomach further breaks down food.
Sent 11: From the stomach, the foods moves into the small intestine.
Sent 12: In the small intestines, another set of chemicals goes to work.
Sent 13: Are you surprised?
Sent 14: Your small intestine, and not your stomach, does most of the work!.
Question: What is chemical digestion, and where does it occur? (A) It occurs in the stomach (B) Food is broken down into useful nutrients (C) Occurs when food is broken down into useful nutrients, it occurs in the stomach and mouth (D) When food debris is passed out of the body, digestive track (E) When oxygen is separated from the air we breathe, in the lungs (F) Occurs when food is broken down into useful nutrients in the mouth, stomach, and small intestines (G) Occurs in the mouth (H) Large chunks are turned into smaller chucks (I) When large chunks of food are reduced to small chunks in the mouth.

Ex Output:
A, B, C, F.

Ex Input:
Paragraph- Sent 1: Newton was the first one to suggest that gravity is universal.
Sent 2: That means gravity affects all objects in the universe.
Sent 3: Thats why his law of gravity is called the law of universal gravitation.
Sent 4: Universal gravitation means that all objects are affected by gravity in the same way.
Sent 5: This is the reason the apple falling from the tree and the Moon being held in orbit is the same.
Sent 6: Universal gravitation also means that while Earth exerts a pull on you, you exert a pull on Earth.
Sent 7: In fact, there is gravity between you and every mass around you.
Sent 8: Even tiny molecules of gas are attracted to one another by the force of gravity.
Sent 9: Newtons law had a huge impact on how people thought about the universe.
Sent 10: It explains the motion of objects not only on Earth but in outer space as well.
Question: What does the Law of Universal Gravitation entail? (A) Gravity affects all objects in the universe (B) The force of inertia (C) The gravitational force field (D) Universal gravitation means that all objects are affected by gravity in the same way (E) The force holding us to earth (F) Motion energy's impact (G) That gravity is universal and affects all objects in the universe in the same way (H) Means it does not affect everyone the same way.

Ex Output:
A, D, G.