Answer:

The correct answer will be option-A.

Explanation:

The life cycle of a plant shows alternation of a generation that is divided into two phases: sporophyte diploid phase represented by plant we see and gametophyte haploid phase represented by the gametophytic structure and gametes-eggs and sperm.

The sporophytic phase produces spores which germinate to produce gametophyte whereas the gametophyte produces gametes of plants like egg cell and sperms which fuse and fertilizes to produce the diploid sporophyte.

Thus, option-A is the correct answer.