Use reasoning to answer the following question. Heavy metals are _.\nOptions:\n- (A) emissions\n- (B) dangerous\n- (C) bent\n- (D) homogenous\n- (E) antigens\n- (F) vehicles\n- (G) fossil fuels\n- (H) heat energy
User
Antigens are molecules that the immune system recognizes as foreign to the body. Heavy metals are, in general, foreign to the body. Heavy metals are antigens.
So, the answer is (E).
Assistant