There Is Evidence to Indicate That Galvanic Skin Response Is

There is evidence to indicate that galvanic skin response is a valid indicator of _____.

A)  the amount of warmth generated by an advertisement 
B)  a consumer's behavior generated by an advertisement 
C)  a consumer's purchase intention generated by an advertisement 
D)  the number of thoughts consumers generate after exposure to an advertisement 
E)  the number and types of thoughts consumers generate after exposure to an advertisement