In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").

A learned characteristic could be (A) Eye color (B) a cartwheel (C) freckles (D) Hair color
B

Deer are less safe in the woods because wolves (A) have fur (B) howl (C) have claws (D) have tails
C

Though fossil fuels and their byproducts will eventually be used up completely, we'll still have (A) gasoline (B) coal (C) plastics (D) light from stars

D