In the following sentence which principal part of the verb describe appears in italics?

Question

The professor is describing the process of osmosis to the class today.
A.past participle
B.past
C.present
D.present participle
Is the answer D?

Answer 1

I can not see your italics but suspect it is the "ing" and D is correct.

http://en.wiktionary.org/wiki/present_participle