Final answer:
The haploid number (n) in humans is 23, representing one set of the total number of chromosomes. These are found in the sex cells, which combine during fertilization, resulting in a diploid cell with 46 chromosomes.Therefore the correct option is A.
Step-by-step explanation:
In human genetics, the haploid number, denoted as 'n', refers to the number of chromosomes contained in a single set. Therefore, the correct answer to your question is C. 23. This is because humans have 23 pairs of chromosomes in their cells. The haploid number (n) represents one set of these chromosomes, consisting of 23 individual chromosomes. So, 23 chromosomes constitute the sex cells, sperm in males, and eggs in females, and these are considered haploid cells because they only have one set of chromosomes. This will combine with the haploid cell from the other parent during fertilization to produce a cell with a full complement i.e., diploid number (2n) of chromosomes, which is 46.
Learn more about Haploid Number