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").

[Q]: Fact1: Ants communicate with chemicals called pheromones., Fact2: Ants are of extreme importance in the insect world., Question: How do some insects communicate? (A) sound (B) sensory neurons (C) Decibels (D) electronic waves (E) progesterone (F) Vibrates (G) pheromones (H) radio waves
[A]: G


[Q]: Fact1: Some pelycosaurs gave rise to a group of animals called therapsids., Fact2: Pelycosaurs are an important lineage preserved in the fossil record., Question: How do we know the lineage of therapsids? (A) Laboratory (B) dinosaurs (C) prokaryotic cells (D) some anthozoans (E) fossil record (F) oral tradition (G) polygenic (H) calibrated
[A]: E


[Q]: Fact1: Most ecosystems get energy from sunlight., Fact2: An ecosystem includes the organisms and their habitat., Question: what gets energy from sunlight? (A) Microscopic organisms (B) objects that have mass (C) peachleaf willow (D) organisms and their habitat (E) density (F) Earth orbiting the Sun (G) gravity (H) volume
[A]:
D