Question 48: We are not permitted to enter the factory after 5 p.m without authorization.
A. We won't enter the factory after 5 p.m without authorization.
B. We needn't enter the factory after 5 p.m without authorization.
C. Visitors wouldn't enter the factory after 5 p.m without authorization.
D. Visitors mustn't enter the factory after 5 p.m without authorization.