Use reasoning to lead to the answer of the following question:
Fur is a fiber that is found only in what type of animal?\nOptions:\n- (A) goats\n- (B) mammal\n- (C) humans\n- (D) mushrooms\n- (E) animals\n- (F) fish\n- (G) protists\n- (H) feet

(B)
Hair is a fiber that is found only in mammals.

Mammals have fur or hair.

Fur is a fiber that is found only in mammals.

.

Therefore, the answer is (B)