What do male dogs use in urine to mark their territory?\nOptions:\n- (A) Natural aphrodisiacs\n- (B) competing for resources\n- (C) Tails\n- (D) Urine cleaner\n- (E) Something coming from a gland\n- (F) Chemical energy\n- (G) an area swollen with pus\n- (H) Chew toys
Hmmm, let me think. I don't want to be wrong, so I got to be careful.
User
Male dogs use pheromones in urine to mark their territory. Pheromones are natural aphrodisiacs. Male dogs use natural aphrodisiacs in urine to mark their territory. The answer: (A).
Assistant