. Differentiate: What is the difference between ‘has eaten’ and ‘had eaten’?

A. ‘Has eaten’ indicates a future action while ‘had eaten’ indicates a present action.

B. ‘Has eaten’ refers to a recent action with present relevance, while ‘had eaten’ refers to a completed action before another past event.

C. ‘Has eaten’ is used for actions that will happen, and ‘had eaten’ is for ongoing actions.

D. ‘Has eaten’ refers to a past action with no relevance, while ‘had eaten’ indicates a future action.