Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Paragraph- Sent 1: The digestive system is the body system that digests food.
Sent 2: It digest food in two ways, mechanically and chemically.
Sent 3: Both help in the process of turning food into nutrients.
Sent 4: The digestive system also eliminates solid food waste.
Sent 5: The major organs of the digestive system include the mouth, esophagus, stomach, and small and large in- testines.
Sent 6: These organs all work together to help you gain energy from the food you eat.
Sent 7: Digestion starts in the mouth.
Sent 8: When food is swallowed, it travels through the esophagus to the stomach.
Sent 9: In the stomach, digestion continues and a small amount of absorption of nutrients takes place.
Sent 10: Most chemical digestion and nearly all absorption of nutrients take place in the small intestine.
Sent 11: This organ consists of three parts: duodenum, jejunum, and ileum.
Sent 12: The large intestine is the last stop in the digestive system.
Sent 13: This is where water is absorbed.
Sent 14: The food not digested is released as waste. 
Question: What does the digestive system do regarding waste? (A) Chemically decomposes it (B) Waste is released (C) Nothing (D) It removes them (E) Waste is absorbed (F) It absorbs them (G) Waste is turned into nutrients (H) Eliminates (I) It eliminates solid food waste and releases it from the body.
Student:
B, D, H, I.