Which of the following is an example of a sentence fragment?
A.
They spent the rest of that long day catching up on the last four months.
ОВ.
Sitting on the beach and drawing pictures in the sand while the gulls flew near.
OC.
When John arrived, she was so happy to see him that she almost tripped.
OD.
We waited two hours after June left but knew she wouldn't come back.