In the above figure the hydrophily is of

Identify structures $\mathrm{A}, \mathrm{B}, \mathrm{C}$ and phenomena $-{\mathrm{P}}_1,{\mathrm{P}}_2,{\mathrm{P}}_3$

The above diagram shows megasporogenesis and development of typical female gametophyte in angiosperms. In which of the following options all divisions $\left({\mathrm{D}}_1\text{ to }{\mathrm{D}}_5\right)$ and structure  S (S) are correctly identified

On the basis of above diagram select the correct option having correct labellings of $\mathrm{A}, \mathrm{C}, \mathrm{D}$ and their functions