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 Q]: Paragraph- Sent 1: Rough surfaces create more friction than smooth surfaces.
Sent 2: Thats why cars have tires.
Sent 3: Its also why we use rubber mats in areas that might get wet.
Sent 4: In your bathtub, you may even use No-Slip tape.
Sent 5: No-slip is another way of saying the items has a lot of friction.
Sent 6: In Figure 1.9, the blades of the skates are very smooth.
Sent 7: Thats why you cant slide across ice with shoes.
Sent 8: The soles of your shoes are much rougher than skates.
Sent 9: The rougher surface of shoes causes more friction and slows you down.
Sent 10: Heavier objects also have more friction.
Sent 11: A heavy object presses down with more force.
Sent 12: The surfaces are held together more tightly.
Sent 13: This makes the surfaces harder to slide past each other.
Sent 14: Did you ever try to push something heavy across the floor?
Sent 15: Heavy objects are much harder to push than light objects.
Question: Why do heavier objects have more friction? (A) A heavy object presses down with more force. The surfaces are held together more tightly, making the surfaces harder to slide past each other (B) Held down with more force to a surface which holds them together more tightly (C) Weight has invese relation with friction (D) Dresser.
[EX A]: A, B.

[EX Q]: Paragraph- Sent 1: { { Plot } } Tom plays pool in a deserted pool hall , pocketing two balls by lowdown means and then wakes Jerry up by shooting the 10-ball into the pocket where he is sleeping .
Sent 2: Jerry awakes just in time to avoid the 10-ball and is carried out to the ball return , where the 10 and the 13 smash the mouse between each other .
Sent 3: Jerry is mad and walks up through the pocket , first sees nothing , but after a few steps back to the pocket , he spots Tom perched behind it .
Sent 4: Jerry tries to jump into another corner pocket , but Tom aims a cue ball with so much force that it roll's into the pocket , and spins back out of it and it rolls Jerry backwards to Tom , who has made a ramp with his cue stick for the mouse to slide up .
Sent 5: Jerry stops at the top of the stick and is then blown down by Tom , who then shoots a stream of balls to make the mouse flat .
Sent 6: The whole train rebounds back towards the cat and the balls stack up at Tom's end of the table .
Sent 7: Tom shoots all the balls in succession with his cue , and then tries to shoot Jerry , but the mouse hangs onto the cue tip .
Sent 8: The cat , as if he were saying '' Have it your way '' , chalks up and shoots the 8-ball using Jerry .
Sent 9: The mouse drops off the cue tip and then is upended by the 8-ball rolling in circles , and Tom forces Jerry to jump through the ball rack as if he were a circus performer .
Sent 10: Tom then sets it on fire to add an additional level of torment , and when Jerry accomplishes this with poise , Tom discards the flaming rack and shoots the 8-ball across the table and back .
Question: Why is Jerry mad? (A) Because he wakes just in time to avoid the 10-ball and is carried out to the ball return , where the 10 and the 13 smash him between each other (B) Because Tom is pocketing two balls (C) Because he ate too much (D) Because he was smashed between the 10 and 13-Balls (E) Because Tom is in the pool (F) Because Tom is shooting balls into the pocket where he is sleeping (G) Because Tom plays pool.
[EX A]: A, D, F.

[EX Q]: Paragraph- Sent 1: Convicted murderer Seth Baxter awakens chained to a table beneath a pendulum blade .
Sent 2: A videotape informs him that crushing his hands between the presses will release him ; he does so , but the blade still swings down and violently cuts him in half , while someone watches through a hole in the wall .
Sent 3: The scene cuts to Agent Peter Strahm , who kills Jeff Denlon in self-defense and is sealed in the sickroom .
Sent 4: He finds a hidden passage with a tape recorder that warns him to stay in the sickroom , but ignores it .
Sent 5: He is attacked by a pig-masked figure in the passage and awakens with his head sealed in a box slowly filling with water , Which he survives by performing a tracheotomy using a pen .
Sent 6: Outside the plant , Detective Mark Hoffman delivers Corbett Denlon to the police and claims they are the only survivors , and is shocked when Strahm is brought out alive as well .
Sent 7: Jill Tuck is met by John Kramer's attorney , who is administering his will .
Sent 8: She is left a box and a videotape , in Which John stresses the importance of the box's contents .
Sent 9: She opens it with a key hung around her neck and then leaves without disclosing its contents .
Sent 10: In a memorial service held for David Tapp , Steven Sing , Allison Kerry , Eric Matthews , and Daniel Rigg , the five officers killed in action , Hoffman is promoted to detective lieutenant .
Sent 11: He is informed of the death of Agent Lindsey Perez while taking Strahm's phone and goes to the hospital to meet Strahm , who says that Hoffman's name was Perez's last words .
Question: What did Agent Peter Strahm use to perform a tracheotomy? (A) A pen (B) Needle (C) Highlighter.
[EX A]:
A.