Question

in tomato plants, round shape (R) is dominant to wrinkled (r) Yellow color (Y) is dominant to green (y). If heterozygous plants cross with recessive homozygous plants will give phenotype ratio of:
A. 1:1:1:1
B. 9:3:3:1
C. 9:3:4
D. 12:3:1
E. 15:1