Answer:
D. 3 cups
Step-by-step explanation:
First, lets see how much butter and milk there is in a single batch
[tex]\frac{1}{2} +1=\frac{3}{2}[/tex]
Next we can double this number to find how much is in a double batch
[tex]\frac{3}{2} *2=\frac{6}{2} =3[/tex]
