Each Parent Contributes a Sex Chromosome

Multiple Choice

Each parent contributes a sex chromosome. Which statement about sex chromosomes is accurate?

A) The mother's ovum contains an X or Y, and the father's sperm contains an X or Y.
B) The mother's ovum contains an X or Y, and the father's sperm contains an X.
C) The mother's ovum contains an X, and the father's sperm contains an X or Y.
D) The mother's ovum contains an X or Y, and the father's sperm contains a Y.