I'm really confused on this question.

Refer to the illustration of a plant life cycle. At which point in the life cycle does fertilization take place?
A. 1
B. 2
C. 3
D. 4

Illustration - http://i50.tinypic.com/2hrkgsn.png

Question

I'm really confused on this question. 

Refer to the illustration of a plant life cycle. At which point in the life cycle does fertilization take place? 
A. 1
B. 2
C. 3
D. 4

Illustration - http://i50.tinypic.com/2hrkgsn.png

anonymous · Answer

I was thinking the answer was B but I don't know if I'm right or wrong.

aaronq · Answer

i think at one

anonymous · Answer

Hmmmmmmmmmm, i think it's B as well because gametes are unfertilized and by Mitosis fertilization should have already occurred.

aaronq · Answer

i think that in order to have a diploid (2n) two haploids have to fuse (fertilization)