Which sentence is punctuated correctly?

A. For about 3 minutes, the helicopter hovered overhead, and then flew away, to the east.
B. On Monday I am going to go hiking but after that I will come by to visit you.
C. After driving all day and night, we finaly reached our destination, and we happily went to sleep.
D. In 2019 eight new students enrolled in our school, but only five of them stayed.

1 answer

The correctly punctuated sentence is:

D. In 2019 eight new students enrolled in our school, but only five of them stayed.

The other sentences have punctuation issues, such as missing commas or misused commas.