Directions: Read the following information carefully and answer the given questions:

Despite repeated announcements that mobile phones were not allowed in the examination hall, three students were caught with their mobile phones.
(A) Mobile phones nowadays have a lot of features and it is easy to cheat with their help.
(B) The invigilator must immediately confiscate the mobile phones and ask the students to leave the exam hall immediately.
(C) Mobile phones are very expensive and leaving them in bags outside the exam hall is not safe.
(D) There have been incidents where students who left the exam hall early stole the mobile phones kept in the bags of the students who were writing the exam.
(E) The school authorities must ask the students to leave their phones in the custody of the invigilator before the exam in order to avoid thefts of mobile phones.
(F) None of the other students were carrying their phones in the exam hall.