Problem: How does the sentence end?

At detox, Aaron is mentored by Steven because 
OPTIONS:
- Aaron has been in the program longer.
- Steven has been in the program longer.
Answer: Steven has been in the program longer.
sentence: Patricia goes to listen to Mary perform at the concert hall due to  OPTIONS:
- Patricia being a singer.
- Mary being a singer.
complete: Mary being a singer.
Megan had always wanted to learn how to swim so they asked Lindsey for lessons. 
OPTIONS:
- Megan made them feel less nervous and safe in the water.
- Lindsey made them feel less nervous and safe in the water.
Lindsey made them feel less nervous and safe in the water.
Input: Continue writing.

Robert watered Ryan's fern for an entire week morning, noon and night because 
OPTIONS:
- Robert was housesitting.
- Ryan was housesitting.

Continued: Robert was housesitting.
Story needs to be completed:
Tanya's communication skills with their partner weren't too good while Erin's was great. 
OPTIONS:
- Tanya would get into fights with their partner a lot.
- Erin would get into fights with their partner a lot.

My choice:
Tanya would get into fights with their partner a lot.
Problem: How does the sentence end?

He printed on the poster board instead of the banner, because the 
OPTIONS:
- poster board came out brighter.
- banner came out brighter.
Answer:
poster board came out brighter.