Final answer:
Peanut oil is used to cook all breaded chicken at Chick-fil-A because it has a high smoking point and adds a distinct flavor to the chicken. The correct answer is C.
Step-by-step explanation:
At Chick-fil-A, the type of oil used to cook all breaded chicken is peanut oil. Peanut oil has a high smoking point, which means it can withstand the high temperatures used for frying without breaking down and affecting the taste or quality of the chicken. It also adds a distinct flavor to the breaded chicken. Some other oils listed, such as canola oil, vegetable oil, and sunflower oil, may be used for other cooking purposes at Chick-fil-A, but peanut oil is specifically used for cooking breaded chicken. The correct answer is C.