After double fertilization, the zygote is ____, and the endosperm is ____.

A) haploid; haploid
B) diploid; haploid
C) diploid, diploid
D) diploid; triploid
E) triploid; diploid

Double Fertilization

Fertilization as it occurs in flowering plants; one sperm cell fuses with an egg, and a second sperm cell fuses with the endosperm mother cell.

Zygote

The cell formed by the fusion of two gametes; the earliest stage of embryonic development in sexually reproducing organisms.

Endosperm

A tissue produced inside the seeds of most flowering plants following fertilization, which acts as a food store for the developing embryo.