What is the difference between ‘will’ and ‘going to’?

A. ‘Will’ is used only for future events, while ‘going to’ is for past events.

B. Both ‘will’ and ‘going to’ mean the same thing and can be used interchangeably.

C. The difference is that ‘will’ is for spontaneous actions and promises, while ‘going to’ is for planned actions and evidence-based predictions.

D. ‘Will’ is used for actions that are already happening, while ‘going to’ is for future actions.