Problem: How does the sentence end?

The part of the graduation ceremony where diplomas were handed out felt long and the part where they threw the hats felt brief, because the 
OPTIONS:
- diplomas were uninteresting.
- hats were uninteresting.
Answer: diplomas were uninteresting.

Problem: How does the sentence end?

Sarah used bug spray and Cynthia did not, so 
OPTIONS:
- Sarah had zero insect bites when camping.
- Cynthia had zero insect bites when camping.
Answer: Sarah had zero insect bites when camping.

Problem: How does the sentence end?

Amy gave an old skirt to Jennifer, because 
OPTIONS:
- Amy 's hips were too big for the skirt.
- Jennifer 's hips were too big for the skirt.
Answer: Amy 's hips were too big for the skirt.

Problem: How does the sentence end?

Joseph didn't want any pets, but Kenneth bought one anyway, which left 
OPTIONS:
- Joseph pretty irritated.
- Kenneth pretty irritated.
Answer:
Joseph pretty irritated.