Final answer:
Human cells typically have 23 pairs or 46 total chromosomes, with the correct answer to the question being B. 23 pairs.
Step-by-step explanation:
Each cell in the human body normally contains 23 pairs of chromosomes, for a total of 46 chromosomes. This includes 22 pairs of autosomal chromosomes and one pair of sex chromosomes (XX in females or XY in males). Human cells with this full complement of chromosomes are referred to as diploid cells. It is the gametes, which are the sperm and egg cells that contain half the number of chromosomes, 23 chromosomes each, and are called haploid cells. The correct answer to the question is B. 23, as this is the number of pairs of chromosomes in each normal human cell.