Context: This passage describes the wing type trait in fruit flies:

In a group of fruit flies, some individuals have normal wings and others have vestigial wings. In this group, the gene for the wing type trait has two alleles. The allele N is for normal wings, and the allele n is for vestigial wings.
A certain fruit fly from this group has normal wings. This fly has one allele for normal wings and one allele for vestigial wings.
Based on this information, what is this fruit fly's genotype for the wing type gene?
A. Nn
B. normal wings
Select the correct answer from the given choices and respond with the letter of the chosen option.

A