Answer:
3/4
Step-by-step explanation:
I was confused at first but after reading it more carefully, I realized that it was talking about phenotype when it said "would show" which meant physically.
Knowing this, now if you put the information in a Phenotype Punnett Square (you can find Punnett Square calculators to help you online) it comes out to 12:4. if you reduce it, it comes to 3/4.
Hope this helps!