Which of the following is not a dimension of public opinion?

A.

intensity

B.

substance

C.

polling

D.

orientation

Correct answer is B

The four dimensions of public opinion are Direction, stability, intensity, and salience. 
Direction; (which solution do you take?)
Stability; (durability of your stance)
Distribution; (degree of consensus/polarization
Intensity; (strength of people's attitudes)