Levis Strauss Sent One of Its Employees',who Is Fluent in Japanese,to

Levis Strauss sent one of its employees',who is fluent in Japanese,to stay at the home of a traditional Japanese family with teenage daughters.The employee disguised himself as an exchange student but was actually in Japan spying on the family and their friends to better understand how Levis jeans are used and worn by teenagers in Japan.This illustrates

A) all good observations should be disguised.
B) observation raises ethical questions.
C) observation is not a good research technique.
D) structured observation is legal.
E) None of the above.