In this task, you are given an impractical statement. You are also given three reasons (associated with "A", "B", "C") explaining why this statement doesn't make sense. You must choose the most corresponding reason explaining why this statement doesn't make sense.
Q: it's so late that we can check all the students' grades
(A) sampling surveys can save time
(B)we should We should be responsible for the grades of all the students
(C)although it's already late, the time for checking was enough
A:
A