Answer: B. 4/5 cups.
Explanation:
Ratio number of--> chocolate chips : dozens of cookies made
--> 4 : 5
The question ask for 1 dozen of cookies. In the ratio above, it states for 5 dozens of cookies.
Our new ratio would be:
Chocolate chips: dozens of cookies made
x : 1
we turn the 5 in the right side of ratio by dividing by 5 so we must do the same for other side of ratio by dividing 5 with 4.
x=4/5
hence answer is B. 4/5 cups
...to be honest the question si worded the best but i assume this is what it means.