Which of the following statements is true?

A

In grasshoppers and some insects, the male has only four sex chromosomes.

B

A male individual contains one X and two Y chromosomes.

C

In human beings, there are 46 chromosomes, of which 42 (21 pairs) are autosomes.

D

In diploid organisms having separate sexes, a specific pair of chromosomes in each diploid cell determines the sex of the individual; they are called sex chromosomes.