Humans Often Appear Irrational When You Look at Results of Decision-Making

Humans often appear irrational when you look at results of decision-making research.What explanation for this tendency is given by evolutionary theorists

A)  Problems in the laboratory are different from the problems we evolved to solve. 
B)  Lab studies use heuristics and algorithms rather than deductive reasoning. 
C)  Most research compares humans to other animals, and other animals are more instinctive in their decision-making processes. 
D)  Most decision-making research involves numerical problems, something that our ancestors did not face.