A 45-Year-Old Woman Who Tests Positive on a Home Pregnancy

A 45-year-old woman who tests positive on a home pregnancy test is later diagnosed with a complete hydatidiform mole.What is unusual about the chromosomes of complete moles?

A) All chromosomes are derived from the mother.
B) All chromosomes are derived from the father.
C) Roughly two-thirds of the chromosomes are derived from the mother.
D) 23 chromosomes are present.
E) 69 chromosomes are present.