Which of the following chromosome pairs would contain all of the same genes (not necessarily at the same loci)?

A. A homologous pair of chromosomes after a deletion in one chromosome in the pair
B. A pair of sex chromosomes in a male human
C. A homologous pair of chromosomes after translocation occurs in one chromosome in the pair
D. A homologous pair of chromosomes after an inversion in one chromosome in the pair

A. A homologous pair of chromosomes after a deletion in one chromosome in the pair