The haploid cell which divides by mitosis to form embryosac is

Options

A. Megaspore mother cell
B. Microspore mother cell
C. Functional megaspore
D. Non-functional megaspore

Answer

C

Explanation

The primary sporogenous cell act as directly megaspore mother cell. It is diploid and divides meiotically to form four haploid megaspores. Generally lower most and chalazae megaspore remains functional out of tetrad of megaspore and the other 3 which lie towards the micropyle degenerate. The functional megaspore produces female gametophyte or embryo sac.