During an exercise an instructor notices a learner that is avoiding eye contact and not working. Which of the following actions should the instructor take? 

Answer options:

A. Directly ask the learner during the exercise if there is a problem.
B. Discreetly go over to the learner and ask if help is needed.
C. Call on the learner to answer a question.
D. Ask an advanced learner to assist this learner.

B