Numerical Scales Differ from Summated Ratings Scales in That _____

Numerical scales differ from summated ratings scales in that _____.

A) for each point on the numerical scale, you develop a label to express the intensity of the respondent's feelings
B) numerical scales use bipolar end points and summated ratings scales do not
C) numerical scales have numbers as response options rather than verbal descriptions
D) a numerical scale uses a continuum in the form of a line with anchors that are numbered and named whereas a summated ratings scale does not
E) none of the above because numerical scales is just another name for a summated ratings scale