3. Which sentence below uses a GERUND as the SUBJECT? (12)
A. The prancing ponies galloped through the mendon.
B. We had a party to celebrate John's graduation
C. His greatest accomplishment was picking a booger the size of Teses.
D. Playing guitar is his favorite thing to do after school
Playing guitar is his favorite thing to do after school does not involve a verb, therefore, playing is a gerund. Playing is the subject because it is what the sentence is talking about.