This sentence is taken from the introduction of a research paper? Which of strategies does it take to Identify a problem?“The findings of studies examining the use of various forms of computer-assisted instruction (CAI) have been mixed. Studies by Hickey (citation 5) and Honeycutt (citation 6) indicated superior results with CAI while studies by Ellis (citation 7), Caldwell (citation 8) and Belzer (citation 9) indicated little or no significant effect. Although much work has been done to date, more studies need to be conducted to ascertain the effects of microcomputer-assisted instruction in teaching various subjects in a variety of learning situations.”
A、Indicating a gap.
B、Raising a question.
C、Disagreeing with the existing approach.
D、Extending a finding.