Androecium

In a typical complete, bisexual and hypogynous flower, the arrangement of floral whorls on the thalamus from the outermost to the innermost is (A) Calyx, corolla, androecium and gynoecium (B) Calyx, corolla, gynoecium and androecium (C) Gynoecium, androecium, corolla and calyx (D) Androecium, gynoecium, corolla and calyx