Multiple Choice Help!! (1 Viewer)

[Mysterious_girl]

Can someone please help me with this multiple choice question.
i've tried solving it many times and i always end up with the answer B, but the correct answer is C

the question is from the 2015 paper

 

[Cu]

It's becauase they're co-dominate. That's why most mix and are orange

 

[choiseunghyun]

Isn't it because both red and yellow gene are co dominant? Like none of them is recessive, both share their dominance, which then leads to it being RR and YY, and not RR and rr.. Anyways, good luck on the Bio test