Which word in the sentence is a gerund?
a. pounding
b. blowing
c. driving
d. exciting

The correct answer is: c. driving  The gerund is always formed with the suffix ing. It has no irregularities. It is also called the form "ing" or present participle. The gerund is used to form continuous times, it is also used as a subject of the phrase if it is put at the beginning.  

evertheless he ought to be slow to believe and to act, nor should he himself show fear, but proceed in a temperate manner with prudence and humanity, so that too much confidence may not make him incautious and too much distrust render him intolerable.

explanation: