Regarding Applications of the Principles of Learning and Conditioning,which of the Following

Regarding applications of the principles of learning and conditioning,which of the following is most accurate outside the laboratory

A)  Conditioning techniques for behaviour modification have proven to be of little value when applied to humans as opposed to animals. 
B)  Conditioning has little relevance to real-world concerns. 
C)  Conditioning theories and techniques have been widely applied in education, business, and industry. 
D)  Conditioning theories have attracted little interest outside psychology.