Choose the correct description depicted by the following floral diagram.

The correct option is D Two whorls of sepals, free petals, stamens in two whorls, bilocular ovary with parietal placentation

The diagram represents the mustard plant (family: Brassicaceae). Brassicaceae or Cruciferae is a medium-sized and economically important family of flowering plants, commonly known as mustards, the crucifers or the cabbage family. In Brassicaceae, the flowers are actinomorphic (radial symmetry), bisexual (possess both male and female flowers), sepals 4 and they are dimerous (arranged in two whorls), petals 4 and they are arranged in a single whorl, stamens 6 and they are tetradynamous (two lateral stamens are smaller and four median stamens are larger), carpels are 2 (bicarpellary) syncarpous, ovary superior.