Which statement best explains why meiosis produces haploid cells rather than diploid cells?
haploid cells join to form an organism that has half the number of chromosomes as the parent.
haploid cells join to form an organism that has a complete set of chromosomes.
haploid cells join to form an organism that has double the number of chromosomes as the parent.
haploid cells join to form an organism that is genetically identical to the parent.

Haploid cells join to form an organism that has a complete set of chromosomes is the correct answer.

Explanation:

In the fertilization process two haploid cells sperm fuse with an egg which results in the formation of a diploid cell.

meiosis produces haploid cells rather than diploid cells because in Meiosis the chromosome number gets reduced.

In the Meiosis process the number of chromosomes in the daughter cells gets reduced to half than of the parent cell and this process results in the formation of four haploid daughter cells

Thus Haploid cells join to form an organism that has a complete set of chromosomes is the correct answer.