A I think I hope this helped
Answer: Either one of her parent or both have heterozygous as trait.
Explanation:Heterozygous refers to when you inherited a particular form of gene from each parent. Heterozygous occurs when two allele of a specific gene locus are different. Heterozygous
Means one of each type of allele. Mary parent are (AA) (Aa) respectively.
D. is the correct answer. Hope this helps! :)
