Multiple-choice quiz of the day

I just looket at Falter Bücher and Residenz Magazin editions for the fall 2009. Falter is featuring 82 books by male authors and 18 books by female authors (that's approximate value because I didn't check every Chinese name for the sex).

Residenz is featuring 21 books by male authors and 7 books by female authors.

And here the quiz of the day!

This is because:

a) There are no female authors

b) Women write bad or uninteresting books

c) This is just another male-dominated industry

Please circle the right answer.