Which two of the following are in correct form ?
A. Let's go to the cinema, shall we ?
B. Let's go to the cinema. do we ?
C. Let's not go to the cinema, shall we ?
D. Let's not go to the cinema. shan't we ?
Choose the correct answer from the options given below :

A

A and D only

B

A and C only

C

B and D only

D

B and C only