The correct option is D i-D), ii-C), iii-A), iv-B)
A typical flower is made up of four whorls. The outermost whorl is the calyx which consists of sepals. The second whorl is the corolla which is made up of petals. The calyx and the corolla enclose the inner reproductive whorls - androecium (male) and gynoecium (female). The androecium and the gynoecium are made up of stamens and carpels respectively.