Choose the One Most Appropriate Answer for Each

Choose the one most appropriate answer for each.
-microspore

A) ​haploid cell that gives rise to pollen grain
B) ​releases two sperm cells when it reaches and penetrates female gametophyte
C) ​develops into a fruit at maturity
D) ​created from a triploid cell that is produced when one sperm cell fuses with the endosperm mother cell
E) ​reproductive organs that produce the plant's male gametophytes
F) ​modified leaf with pigments and fragrance-producing cells
G) ​immature male gametophyte
H) ​female reproductive organ
I) ​landing platform for pollen
J) ​contains pollen sacs
K) ​forms in an ovule and gives rise to a female gametophyte
L) ​outermost whorl of leaf parts on a receptacle; generally green, but sometimes pigmented
M) ​region of carpel that receives pollen grains
N) ​arrival of pollen on a receptive stigma
O) ​forms a seed at maturity