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: You approach the door of your friends house.
Sent 2: What is the first thing you do before entering?
Sent 3: Of course, you wipe your feet.
Sent 4: You are a thoughtful visitor.
Sent 5: Fortunately, there is a nice piece of carpet by the door to wipe your shoes.
Sent 6: Too bad your caring comes at a price.
Sent 7: After wiping your feet on the mat you reach out to touch the brass knocker on the door.
Sent 8: A spark suddenly jumps between your hand and the metal.
Sent 9: You feel an electric shock.
Sent 10: Why do you think an electric shock occurs?
Sent 11: An electric shock occurs when there is a sudden discharge of static electricity.
Sent 12: Has this ever happened to you?
Sent 13: You reached out to touch a metal doorknob and received an unpleasant electric shock?
Sent 14: The reason you get a shock is because of moving electric charges.
Sent 15: Moving electric charges also create lightning bolts.
Sent 16: It is also the same reason electric current flows through cables and wires.
Question: You get shocked because of moving electric charges and moving electric charges also creates what? (A) Lightning bolts (B) Lightening bolts (C) Lightning (D) Irritation (E) Pain (F) Water to rise (G) Earthquake (H) Fire (I) Short circuit (J) Bolts.
A, B, C, J.

Paragraph- Sent 1: Force is a vector.
Sent 2: What then is a vector?
Sent 3: Think about how you would give directions to a friend.
Sent 4: You would not say, just walk half a mile.
Sent 5: The person may walk a half mile in the wrong direction!
Sent 6: More information is needed.
Sent 7: You may say, follow this particular road for a half mile.
Sent 8: You may say, look for the green house on Sumter St. In both examples, you provided a direction.
Sent 9: You also gave the distance.
Sent 10: In other words, you provided a vector.
Sent 11: You did not just give a distance.
Sent 12: Both pieces of information are needed to find a location.
Sent 13: This is just like describing forces.
Sent 14: To explain forces, both size and direction are needed.
Sent 15: Notice the girl in Figure 1.1.
Sent 16: She is pushing the swing away from herself.
Sent 17: Thats the direction of the force.
Sent 18: She can give the swing a strong push or a weak push.
Question: If you know a force magnitude already, then what else do you need in order to give you the knowledge of a vector? (A) Pulling force (B) Direction of the object (C) Pushing force (D) Distance (E) Size of the object (F) Direction.
D, E, F.

Paragraph- Sent 1: Above were just a few things that caused habitat loss or change.
Sent 2: There are many ways in which living organisms can affect their ecosystem.
Sent 3: In some areas, it is because of fire management.
Sent 4: Fire is a natural event, so managing fire correctly is very important.
Sent 5: In other areas, fisherman have taken too many fish from one area.
Sent 6: This places the species at risk of extinction.
Sent 7: It also affects other living things that may rely on these fish for food.
Sent 8: The image below shows a picture of a mine.
Sent 9: Mining changes the Earths surface.
Sent 10: This area may once have been a forest or a prairie.
Sent 11: Think about how many plants and animals may once have lived here.
Sent 12: Now it is a giant hole in the ground.
Sent 13: Pollution is also a major factor in habitat loss and change.
Question: How does mining change the earth's surface? (A) Lose of Water (B) It causes a giant hole to be present in that area which changes the structure of the surface there (C) It changes the chemical composition of the surface (D) Plants and animals are turned into giant holes (E) Forest get crowded with plants and animals (F) It leaves a giant hole in the ground where there may once have been a forest or a prairie where many plants and animals may once have lived.
B, F.