A maternal effect gene exists in a dominant N (normal) allele and a recessive n (abnormal) allele.

Question:

A maternal effect gene exists in a dominant N (normal) allele and a recessive n (abnormal) allele. What would be the ratios of genotypes and phenotypes for the offspring of the following crosses?
A. nn female × NN male
B. NN female × nn male
C. Nn female × Nn male