Such students may not be "A" students, depending on how the class is graded.
When I was an undergrad, I had a couple of "A" performances (in one case, I was among the top 3 students in a class of about 150) marked down to "A-" due to attendance/pop quizzes ("statistical sampling of attendance").
When I was an undergrad, I had a couple of "A" performances (in one case, I was among the top 3 students in a class of about 150) marked down to "A-" due to attendance/pop quizzes ("statistical sampling of attendance").