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: Ancestors of hagfish are thought to have been the earliest vertebrates., Fact2: Property of ancestors and forefathers can only be legally inherited by sons., Question: Forefathers of what kind of fish are thought to be the earliest vertebrates? (A) hagfish (B) Pelycosaur (C) fish (D) angiosperm (E) adult (F) Therapsids (G) marine (H) aquatic
[A]: A


[Q]: Fact1: Mollusks live in most terrestrial, freshwater, and marine habitats., Fact2: Though most trout are freshwater fish, some live in marine waters., Question: What do some mollusks live near? (A) gills (B) rivers (C) desert (D) roads (E) fungi (F) trout (G) clouds (H) water
[A]: F


[Q]: Fact1: Trees have woody stems covered with bark., Fact2: Cinnamon sticks are simply pieces of tree bark., Question: What are sometimes made from the material that covers woody stems? (A) shrub beds (B) solid geometric shapes (C) saffron (D) Organic compounds (E) turmeric (F) mustard seed (G) cinnamon sticks (H) layers of fat
[A]:
G