I don't believe any of them are a good thesis for a compare-and-contrast essay, so D.
Answer:
1. I was touched by the stranger's generosity.
2. The resort's garden is full of mango trees.
3. The porter did not notice the train's approach.
4. We were awakened by the bird's chirping.
5. The computer's keyboard is not working.
Explanation:
An apostrophe is used to show that one person/thing owns or is a member of something. Also, an apostrophe is used in contractions, plural words, and possessive words.
