Answer: The correct answer is -
B) haploid.
Meiosis is a type of cell division that occurs during the process of formation of gametes particularly sexually reproducing organisms.
Gametes are reproductive, sex cells that are haploid (having half the number of chromosomes as their parent cell).
Thus, during meiosis a diploid parent cell gives 4 haploid daughter cells, called gametes (such as eggs and sperms).
Vascular plants reproduce with seeds, nonvascular plants do not, therefore it is C.
This leads to precipitation (rain) :)