Explain the difference between ‘mustn’t’ and ‘don’t have to’.

A. ‘Mustn’t’ implies prohibition, while ‘don’t have to’ implies lack of obligation.

B. ‘Mustn’t’ means you should do something, while ‘don’t have to’ means you must do it.

C. ‘Mustn’t’ is used for suggestions, whereas ‘don’t have to’ is for rules.

D. ‘Mustn’t’ indicates a strong recommendation, while ‘don’t have to’ suggests a choice.