Akpos Cheating In An Exam

During the exam, Akpos kept looking under the table, then he would write on the answer sheet. His teacher saw him doing that & thought he was copying.? When collecting the paper after the exam..
Teacher: I'm gonna minus 10 marks.
Akpos: Haaaa!! Why ma?
Teacher: For copying.
Akpos: How do you know that I was copying?
Teacher: I saw you looking under the table.
Akpos: *laughing* Question 9 said, STUDY THE TABLE BELOW.