Biology genetics question

by crossing two plants, the resulting offspring is made by 156 individuals with the dominant type A, and 47 individuals with the recessive type a. What is the most probably genotype of the two parents?
A) AA and Aa
B) aa and aa
C) AA and aa
D) Aa and Aa
E) aa and Aa

the ratio of 156 : 47 is about 150 : 5 = 3 : 1
if we cross option D) we get :
Aa x Aa = AA Aa aA aa
So a ratio of 3 offspring with the dominant pheno and 1 offspring with the recessive pheno

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