Which of the following sentences contains a gerund?

A.
Singing in the choir is enjoyable until my voice gets hoarse and my feet begin to hurt.
B.
Rhonda shielded her eyes from the brightly shining sun and wished she owned sunglasses.
C.
Since the bus passes my house every day, I do not think that I need to walk to school.
D.
Running late for class, Christopher tripped over his untied shoelace and dropped his books.

I chose D

No.

http://grammar.about.com/od/fh/g/gerundterm.htm