[Q]: How does the sentence end?

the boards were not able to fit into the rooms for storage, the 
OPTIONS:
- boards were too small.
- rooms were too small.

[A]: rooms were too small.
QUES: Continue writing.

Bob wanted to sell his piano and buy a keyboard, because the 

OPTIONS:
- piano was old.
- keyboard was old.
+++++++++
ANS: piano was old.
Problem: How does the sentence end?

Sarah found the sound of the sax peaceful but Maria found it grating. 
OPTIONS:
- Sarah bought a Metallic album.
- Maria bought a Metallic album.
Answer: Maria bought a Metallic album.
sentence: I avoided the live wire but not the fence it ran along because the  OPTIONS:
- wire was safe to touch.
- fence was safe to touch.
complete: fence was safe to touch.
Brett wanted Nick to plant a tree in their yard because 
OPTIONS:
- Brett was going on a long vacation.
- Nick was going on a long vacation.
Brett was going on a long vacation.
Problem: Continue the following story.

Robert wanted carpeting on the floor and Eric didn't because 
OPTIONS:
- Robert knew that vacuuming was easier than sweeping.
- Eric knew that vacuuming was easier than sweeping.
Here's how I want to continue it:
Robert knew that vacuuming was easier than sweeping.