The Method of Summated Ratings Overcomes Which Criticism of the Method

The method of summated ratings overcomes which criticism of the method of equal-appearing intervals?

A) Difficulties in developing a large number of statements.
B) The costs due to the size of the judgment sample required with equal-appearing intervals.
C) The difficulty of generating total scores by which to array subjects.
D) The non-scientific nature of item analysis with the method of equal-appearing intervals.
E) The lack of ability for a subject to express his intensity of feeling with an equal-appearing interval scale.