As given in the question, the number of chromosomes in somatic cells of rabbit is 44 (2n), so the number of chromosomes in gametes will be 22 (n). This is due to fact that in normal somatic (body) cells, the chromosomes exist in pairs. The condition is called diploidy. During meiosis the cell produces gametes, or germ cells, each containing half the normal or somatic number of chromosomes. From this it is also clear that gametes are genetically different from somatic cells.Hence, option B is correct.