You needn’t hurry because there is a delay of about two hours.

A. There is a delay of about two hours and therefore you mustn’t hurry. 

B. It is not possible for you to hurry because there is a delay of about two hours. 

C. It is not necessary for you to hurry because there is a delay of about two hours. 

D. You mustn’t hurry because there is a delay of about two hours.