White blood cell from a human female has

A) 22 pairs of autosomes and two X chromosomes
B) 23 pairs of autosomes and two X chromosomes
C) 22 pairs of autosomes and an X and Y chromosome
D) 23 pairs of autosomes and an X and a Y chromosome
E) 46 pairs of autosomes

the sex chromosomes x and y is the 23rd pair
so the answer is A
a female has
22 pairs and a pair of x's