I think the right answer is b
Answer:
If both parents are heterozygous in a monohybrid cross, the offspring will have a phenotypic ratio of 3:1. If both are heterozygous for both traits in a dihybrid cross, the phenotypic ratio will be 9:3:3:1.
sugar ，because both protein and fat take time to transform if you wanna get quick energy that should be sugar.
