Which Statement Best Illustrates Beck's Explanation of Depression

Which statement best illustrates Beck's explanation of depression?

A) "Depression is primarily a problem in thinking; negative schemas make one feel depressed."
B) "When opportunities for reinforcement are reduced, people do less and are therefore more likely to become depressed."
C) "Depressives use internal and global causal attributions for negative events rather than external and specific attributions."
D) "Depressives see the world with little distortion; they accurately appreciate the brutality of life."