in conducting experiments the test scientific theories exceptions?

Question

a.can be ignored if they are few in number
b.tend to disprove or substantially weaken the theory and must be reported
c.are included in order to increase the power theory
d.suggest that the research method aree faulty

my answer is c

Answer 1

Answered yesterday:
http://www.jiskha.com/display.cgi?id=1375194065

Which letter matches PsyDAG's explanation? (Hint: It's not c.)