It is choice B. Haploid cells contain one copy of genetic information. (ex sperm, egg) Diploid cells contain two copies of the genetic information. (ex muscle, bone brain, eye, etc.)
The correct answer is B. Sperm, as it is a haploid cell containing one complete set of chromosomes, while neurons and red blood cells are diploid with two complete sets. Haploid cells have 23 chromosomes, which is half the number found in diploid cells.
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