yogurt do you need? -Three cupsA. How longB. How farC. How manyD. How much

问题补充：

yogurt do you need?

-Three cups．

A. How long

B. How far

C. How many

D. How much

答案：

A. How long

B. How far

C. How many

(答案→)D. How much

解析：根据yogurt为不可数名词，故选D