In healthy humans, how many chromosomes does a diploid cell contain?

Healthy humans have 23 pairs of chromosomes, which makes a total of 46 chromosomes in a diploid cell. Option A is incorrect because it is half the number of chromosomes found in a diploid cell. Option C is incorrect because it is double the number of chromosomes found in a diploid cell. Option D is incorrect because it is close to the correct answer, but it does not account for the fact that humans have 23 pairs of chromosomes, not 22.