问题如下：
For an industry that involves high fixed capital investment, a good way to improve profit growth is:
选项：
A.pursuing economies of scale.
B.removing features that differentiate the product or service provided.
C.pursuing diseconomies of scale.
解释：
A is correct.
For an industry that involves high fixed capital investment, pursuing economies of scale is a good way to reduce costs per unit and increase profit.
麻烦老师协助解答一下本题A和C两个选项，谢谢
