A thing that is what makes up the excretory system.\nOptions:\n- (A) matter\n- (B) vital\n- (C) omniscient\n- (D) external\n- (E) toads\n- (F) food\n- (G) always angry\n- (H) animals
Stream of thoughts:
(B)
Organs of excretion make up the excretory system.

All internal organs are vital organs.

A thing that is internal and vital make up the excretory system.

.

Thus, the answer is (B)