41. Which of the following explains why the most basic industrial problem on a global scale is a gap between the world demand for products and the world capacity to supply them?
A. Stagnant demand B. Increased capacity worldwide
C. Expanding markets D. Lack of surplus
E. both A and B

Is this one of those problems that was marked wrong, because i put E and i remember seeing something about it in the book, but now i cant find it.