How many different phenotypes are possible in the offspring of two parents with genotypes aa and aa, where a is the dominant allele for a trait and a is the recessive allele for the same trait? (1 point) one / two/ three/ four

There is only 1 unique phenotype observed in the offspring. As all offspring produced would have the genotype of Aa. In which the characteristic for the dominant allele will be seen in all offspring. As all offspring are Aa. There is only 1 unique phenotype. Here based on the characteristic or phenotype expression of the dominant allele.

Idont really understand