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: telephones are used for communication by two people by transmitting sound, Fact2: And the sound of their voice becomes important as well., Question: What is transmitted with telephones? (A) voice (B) copper (C) waves (D) smell (E) cancer (F) energy (G) HIV (H) power

A: A
****
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: the looseness of soil has a positive impact on a plant 's roots' growth in that soil, Fact2: Soil or dirt is typically high in silica and alumina., Question: What has a positive impact on root growth in dirt? (A) nutrients (B) burrs (C) exercise (D) support (E) evaporation (F) looseness (G) Sand dollars (H) sun's heat

A:
F
****