The Following Questions Focus on Multidimensional Scaling

The following questions focus on Multidimensional Scaling:
-Which of the following is TRUE?

A) The attribute-based approaches for developing perceptual maps require subjects to make overall judgments about the similarity of various objects using whatever attributes they wish.
B) The emphasis in multidimensional scaling analysis is to determine the maximum dimensionality needed to capture adequately a person's perceptual or preference judgments.
C) The idea of distance or more formally psychological nearness or proximity is one of the key ideas in multidimensional scaling.
D) One of the key outputs of a multidimensional scaling analysis is the computer's identification of the attributes underlying an individual's similarity judgments.
E) They are all false.