Vanessa, a Student, Has to Submit Two Assignments, a and B

Vanessa, a student, has to submit two assignments, A and B, on the same day. Each assignment is divided into three tasks. She has to write the first draft, check it for accuracy, and let her friend review it before submission. Each of these tasks takes 5 hours. In order to multitask effectively, Vanessa should:

A) complete the first two tasks of assignment A and start on assignment B while her friend reviews assignment A.
B) complete both assignments simultaneously for her friend to review.
C) complete the first task for each assignment before moving on to the second task and so on.
D) complete assignment B after assignment A has been reviewed.
E) complete assignment A after assignment B has been reviewed.