What has a circulatory system with a two-chambered heart?\nOptions:\n- (A) sharks\n- (B) insects\n- (C) salmon\n- (D) animals\n- (E) barnacles\n- (F) mammals\n- (G) tortoises\n- (H) alpacas
Think hard. Detailed solution:
(C)
Fish have a circulatory system with a two-chambered heart.

Fish include bass and salmon.

Salmon have a circulatory system with a two-chambered heart.

.

The answer: (C)