Match the Chromosomal Compositions, Labelled A

Match the chromosomal compositions, labelled a. through d., with the stages of developing sperm. (Options may be used more than once or not at all.)
-secondary spermatocyte

A) contains a full set of 23 pairs of chromosomes
B) contains a full set of 23 pairs of doubled chromosomes
C) contains a half set of doubled chromosomes
D) contains a set of 23, single, unpaired chromosomes