An instructor is conducting a three week course for a company. The learners` managers request the instructor`s insight as to how the learners are progressing. The instructor needs to report to management at the end of each week. Which of the following will BEST show the progress of the learners as well as justify the instructor`s opinion? 

Answer options:

A. Invite management to observe the learners in the classroom.
B. Test the skills of the learners at the end of the course to show if the course objectives were met.
C. Perform individual interviews with the learners to ask how they feel their progress is coming along.
D. Deliver a weekly assessment test that validates the improvement of the skills of the learners.

A