What is the difference between ‘going to’ and ‘will’ when talking about plans?

A. ‘Going to’ is used for definite plans, while ‘will’ is used for uncertain plans.

B. ‘Going to’ is used for past plans, while ‘will’ is used for future plans.

C. ‘Going to’ is used for hypothetical plans, while ‘will’ is used for real plans.

D. ‘Going to’ is used for indefinite plans, while ‘will’ is used for definite plans.