The answer your looking for is B.
Online school can be easy or very hard depending on the person many people have a short attention span so when there given one assignment it would take then 2 hours or more because there distracted and that could cause them to get behind like me I have a short attention span and that’s causes many problems with my assignments.
the answer is A) because it can be anyones opinion for what the situation is. shes stating that theres a undercurrent of intense excitement.
hope this helped:)