Oliver, Hannah, and Maya are teaming up for an exciting language challenge! How can they distinguish between ‘can’ and ‘could’ when making requests?

A. ‘Can’ is used for past requests, while ‘could’ is used for present requests.

B. ‘Can’ is used for general requests or permissions, while ‘could’ is considered more polite and formal.

C. ‘Can’ is more formal than ‘could’ when making requests.

D. ‘Can’ is considered impolite compared to ‘could’ when making requests.