The correct answer is option (3), (C) and (E) only as both are wrong statements. • Atrial natriuretic factor, a peptide hormone is secreted from the atria of the heart not by the seminiferous tubules of the testes. • Gastrin acts on the gastric glands not on the intestinal wall and stimulates the secretion of hydrochloric acid and pepsinogen. Rest statements (A), (B) and (D) are correct statements. Option (1), (2) and (4) are incorrect because they have eitherone or two correct statements.