[Q]: How does the sentence end?

The test was hard for Samuel but a breeze for Randy , since 
OPTIONS:
- Samuel had failed to study for it.
- Randy had failed to study for it.

[A]: Samuel had failed to study for it.
QUES: Continue writing.

The aquarium was very appealing to Tanya while Samantha hated it, since 

OPTIONS:
- Tanya loved seeing fish.
- Samantha loved seeing fish.
+++++++++
ANS: Tanya loved seeing fish.
Problem: How does the sentence end?

I always hang photos on wall with the nails compared to using strips because the 
OPTIONS:
- nails are weak.
- strips are weak.
Answer: strips are weak.
sentence: There was a lot of fear in Erin's heart and not Cynthia's because  OPTIONS:
- Erin was a fearless person.
- Cynthia was a fearless person.
complete: Cynthia was a fearless person.
My sister liked the leather a lot better than the other fabric, because the 
OPTIONS:
- leather was easier to clean.
- fabric was easier to clean.
leather was easier to clean.
Problem: Continue the following story.

The stack of cash Rebecca received from the bank would not fit inside her purse, the 
OPTIONS:
- cash was too narrow.
- purse was too narrow.
Here's how I want to continue it:
purse was too narrow.