. What is the difference between ‘in’ and ‘at’?

A. ‘In’ refers to being inside a space, while ‘at’ refers to a specific point or location.

B. ‘In’ is used for time, while ‘at’ is used for place.

C. ‘In’ indicates a direction, while ‘at’ indicates a distance.

D. ‘In’ is used for large areas, while ‘at’ is used for small areas.