The number of chromosomes present in a cell in human being is _____________.

The correct option is B.

Explanation of the correct option :

1. Cell division takes place in cells as the condensed structures called chromosomes divide.
2. It involves separating of chromosomes each with two chromatids which happens during the anaphase stage of the cell division.
3. Human body contains 23 pairs of chromosomes i.e, 46 in total.

Explanation of the incorrect option:

Option A:

23 chromosomes represent the haploid set such that in gametes.

Option C:

56 chromosomes may be seen only in euploidy conditions.

Option D:

Occurrence of 2 chromosomes is very rare in any of the organisms.

Final answer: The number of chromosomes present in a cell in human being is 46.