During a course an instructor notices that the course content seems to leave out important but not critical information regarding the subject matter. Which of the following statements describes the NEXT action the instructor should take that would be most beneficial to the current students? 

Answer options:

A. Suggest supplemental training resources at the end of class.
B. Inform the learners of the important information and that it will be added to the course material in the future.
C. Purchase additional training resources and incorporate them into the class.
D. Contact the course designer and recommend adding the additional material.

A