Question

Which word in the sentence is a gerund? Stretching after running, she touched her fingers to her toes. A. toes B. stretching C. touched D. running

Answer 1

A gerund has a -ing at the end, so A. toes and C. touched could not be gerund.

Among the other two options,  B. stretching  and D. running Stretching is a present participle (a verbal form) and running - a noun- is a gerund, since gerunds are nouns.