Problem: How does the sentence end?

Sarah sneezed more than Natalie did because 
OPTIONS:
- Sarah had kept their pet out of the house.
- Natalie had kept their pet out of the house.
Answer: Natalie had kept their pet out of the house.
sentence: The cat was shedding, so we went with the bath treatment instead of the medicine since the  OPTIONS:
- treatment was available.
- medicine was available.
complete: treatment was available.
The movers wanted to store the boxes in the offices but the 
OPTIONS:
- offices were too large.
- boxes were too large.
boxes were too large.
Input: Continue writing.

All administrative functions were handled by the office rather than the computer, as the 
OPTIONS:
- office was untrustworthy to do it right.
- computer was untrustworthy to do it right.

Continued: computer was untrustworthy to do it right.
Story needs to be completed:
The family decided to put a porch on their house instead of a sun room, because the 
OPTIONS:
- porch was costlier.
- sun room was costlier.

My choice:
sun room was costlier.
Problem: How does the sentence end?

The professional gardener made sure to use the right tools. He left the shovel home but brought the rake because the 
OPTIONS:
- shovel   was essential.
- rake   was essential.
Answer:
rake   was essential.