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.
Q: Paragraph- Sent 1: Energy is stored in chemical compounds.
Sent 2: This energy is called chemical energy.
Sent 3: Chemical energy is a form of potential energy.
Sent 4: When bonds between atoms are broken, energy is released.
Sent 5: The wood in fireplaces has chemical energy.
Sent 6: The energy is released as heat and light when the wood burns.
Sent 7: Most living things get their energy from food.
Sent 8: When food molecules are broken down, the energy is released.
Sent 9: It may then be used to do work, like playing ball or studying science.
Sent 10: If you have ever heard, "Eat a good breakfast", thats why.
Sent 11: You need energy to do things during the day.
Sent 12: To do those things you need energy.
Sent 13: You get your energy from the food you eat.
Sent 14: That energy is stored in your body until you need it.
Sent 15: How did you get to school today?
Sent 16: If you walked, you used chemical energy from the food you ate.
Sent 17: What if you rode the bus or were driven in a car?
Sent 18: Where did that energy come from?. 
Question: In order for you to walk, what happens to bonds between atoms? (A) They are formed (B) The bonds are broken (C) They are fused together (D) They repel each other (E) They are broken (F) Bonds between atoms are broken (G) They connect.
A: 
B, E, F.