Problem: How does the sentence end?

Lindsey wanted to write a letter to Betty even though she knew
OPTIONS:
- Lindsey would never send it.
- Betty would never send it.
Answer: Lindsey would never send it.

sentence: The cakes that Elena makes taste amazing compared to Felicia's, so OPTIONS:
- Elena is not the baker.
- Felicia is not the baker.
complete: Felicia is not the baker.

Nick is trying to make Steven want to learn more about mathematics because
OPTIONS:
- Nick is his teacher.
- Steven is his teacher.
Nick is his teacher.

Input: Continue writing.

Christopher was doing very well in high school but Kyle wasn't, so
OPTIONS:
- Christopher required some tutoring.
- Kyle required some tutoring.

Continued: Kyle required some tutoring.

Story needs to be completed:
The facial massage that Brian booked for Justin at the spa got cancelled, so
OPTIONS:
- Brian felt guilty.
- Justin felt guilty.

My choice:
Brian felt guilty.

Problem: How does the sentence end?

I was writing with the marker and not the pen this time since the
OPTIONS:
- marker 's ink was darker.
- pen 's ink was darker.
Answer:
marker 's ink was darker.