Olivia is deciding whether to study for her upcoming exam.

She wonders about the difference in usage between ‘need to’ and ‘should’.

A. ‘Need to’ expresses necessity, while ‘should’ conveys recommendation.

B. ‘Need to’ indicates a suggestion, while ‘should’ implies obligation.

C. ‘Need to’ is used for past actions, whereas ‘should’ is for future actions.

D. ‘Need to’ and ‘should’ are interchangeable in all contexts.