Question

what is the function of the wing - like extensions of a pine seed?
fertilization
dispersal
double fertilization
i do not know

Explanation:

The wing - like extensions of a pine seed help in dispersal. They allow the seed to be carried by wind over longer distances. Fertilization is the process of gamete fusion and double fertilization is a characteristic of angiosperms (not relevant here as pine is a gymnosperm).

Answer:

Dispersal