Which Phrases Accurately Describe Computerized Adaptive Testing (CAT) as Used

Which phrases accurately describe computerized adaptive testing (CAT) as used in the NCLEX-PN examination? (Select all that apply.)

A) Selects questions of varying difficulty, depending on previous responses
B) Provides an individualized examination for each tester
C) Requires the tester to answer a minimum of 85 questions
D) Selects an equal number of questions from the four categories of client need
E) Ends testing when 50% of the questions have been answered correctly