Highlighting Offers a Solution to the Problem of Display Clutter

Multiple Choice

Highlighting offers a solution to the problem of display clutter. Which of the following is NOT a reason for its success?

A) highlighting can speed up the search process by using features that are pre-attentively processed.
B) highlighting can be used to select one coding class (e.g., search the red symbols) for search, reducing set size
C) some aspects of shape can be used as a pre-attentive filter
D) highlighting requires only a few keystrokes for the user