The correct answer is B.
OBJ-1.3: The time of day used for conducting the test is critically important based on this engagement’s goals. This engagement seeks to determine if their LMS can quickly scale up in response to increase student demand. This is not just a bandwidth test or simple load test, but they also want to determine if the customer/student experience is affected. To determine that, the engagement must occur while many real students are also online and taking the courses.