2 would be A because fertilization is where the sperm cell and egg unite. 3 would be C because in the picture you can see how the division is occuring.
During interphase, the cell grows and builds the nutrients required for the stage called Mitosis that prepares it for cell division and manipulate the dna
Pollen is a gamete therefore it contains half genetic information of a regular cell. all the possible combination types are S1T, S2T, S1t and S2t