What best describes haploid cells?

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Haploid describes the number of chromosome sets in a cell: having a single complete set, denoted as n. This means the cell contains one copy of each chromosome, not two. In humans, this is true for gametes like sperm and egg, which carry 23 chromosomes each, versus somatic cells that carry two copies of each chromosome (46 total). A cell described as haploid is not missing chromosomes entirely, and fertilization creates a diploid zygote when two haploid gametes fuse to restore two sets of chromosomes. So the description "a cell containing only one set of chromosomes (n)" best captures what haploid means.