Teacher:In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Teacher: Now, understand the problem? Solve this instance: Fact1: Zooplankton are tiny animals that feed on phytoplankton., Fact2: Planktonic plants are called phytoplankton., Question: What feed on plant plankton? (A) passenger pigeons (B) parasites (C) sunlight (D) animal plankton (E) ice (F) horses (G) absorb light energy (H) honeybees
Student:
D