Which of the following was NOT a reason why there was less industrial development I the South than in the North?

Question

a. because of the rockiness of southern land made it difficult to develop railroads.
b. because there was a lack of capital in the South.
c. because agricultural production of cotton was so profitable, there was less incentive to develop industry.*
d. because the market for manufacturing goods in the South was smaller than in the North.

I think its either A or C
they both sound correct to me

Answer 1

... was NOT a reason ...