Problem: How does the sentence end?

Since Elena was a homeowner and Erin lived in an apartment, 
OPTIONS:
- Elena sold their place of residence.
- Erin sold their place of residence.
Answer: Elena sold their place of residence.
sentence: The kitchen in my moms house is a lot better than my garage, because the  OPTIONS:
- kitchen is more cramped.
- garage is more cramped.
complete: garage is more cramped.
It took Christine minutes to do what took Katrina hours, thanks to 
OPTIONS:
- Christine being a rookie at the task.
- Katrina being a rookie at the task.
Katrina being a rookie at the task.
Input: Continue writing.

Felicia wants to bond with her new pet Macaw and asks for Amy's help, because 
OPTIONS:
- Felicia is Macaw trainer.
- Amy is Macaw trainer.

Continued: Amy is Macaw trainer.
Story needs to be completed:
Elena always used paper bags but Patricia used plastic bags, because 
OPTIONS:
- Elena was unconcerned about the environment.
- Patricia was unconcerned about the environment.

My choice:
Patricia was unconcerned about the environment.
Problem: How does the sentence end?

Carrie ate foods with a lot of spices but not Elena because 
OPTIONS:
- Carrie had a bland sense of taste.
- Elena had a bland sense of taste.
Answer:
Elena had a bland sense of taste.