Which of the following provides the MOST support for implementing a variety of standard instructional methods?

Which of the following provides the MOST support for implementing a variety of standard instructional methods?

A.
Few instructors can maintain their interest in teaching unless they use a variety of instructional methods.

B.
No single instructional method can be appropriate for all course material or learner groups.

C.
Using a variety of instructional methods is the only means by which an instructor can determine which methods the learners prefer.

D.
Most instructional designs prescribe the use of a variety of instructional methods.