In considering the cross YyRr x YyRr, the phenotype ratios of the F2 generation will be O 1.3:1
3:1
9.3.3:1

that is true   : ) hope this you

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.