Can you check my answer?

Matt hiked the trail yesterday. It made him tired.

Which sentence combines the two sentences using a gerund phrase?

A- hiking the trail yesterday made Matt tired
B- Matt hiked the trail and it made him tired. My answer
C-It made Matt tired to hike the trail yesterday
D- Matt was tired after hiking the trail yesterday

No.

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

I believe it is D then..?

To check your answer, we can analyze each option and see if it uses a gerund phrase to combine the two sentences:

A- "hiking the trail yesterday made Matt tired" - This sentence combines the two sentences using a gerund phrase. "Hiking" is the gerund, and "the trail yesterday made Matt tired" is the rest of the sentence.

B- "Matt hiked the trail and it made him tired." - This sentence does not use a gerund phrase. It combines the two sentences using the word "and" instead.

C- "It made Matt tired to hike the trail yesterday." - This sentence does not use a gerund phrase. It uses an infinitive phrase ("to hike the trail yesterday") instead.

D- "Matt was tired after hiking the trail yesterday." - This sentence does not use a gerund phrase. It simply states the cause-effect relationship between Matt being tired and hiking the trail yesterday.

Based on this analysis, the correct answer is option A, "hiking the trail yesterday made Matt tired." It combines the two sentences using a gerund phrase.