Problem: How does the sentence end?

Rebecca showed Felicia that she was an experienced bricklayer, because 
OPTIONS:
- Rebecca had built such a strong foundation.
- Felicia had built such a strong foundation.
Answer: Rebecca had built such a strong foundation.
sentence: The companies had trouble buying the desks, but not the chairs, because the  OPTIONS:
- desks were costly.
- chairs were costly.
complete: desks were costly.
Ian had a very nocturnal schedule but Derrick was a morning person. 
OPTIONS:
- Ian never slept until noon.
- Derrick never slept until noon.
Derrick never slept until noon.
Input: Continue writing.

The girl thought she would have a better chance asking Angela instead of Christine for permission to attend the dance because 
OPTIONS:
- Angela had more stringent rules.
- Christine had more stringent rules.

Continued: Christine had more stringent rules.
Story needs to be completed:
Emily avoided getting the hypothermia that Maria succumbed to, because 
OPTIONS:
- Emily had worn appropriate clothing.
- Maria had worn appropriate clothing.

My choice:
Emily had worn appropriate clothing.
Problem: How does the sentence end?

We cared for the spider plant a bit more than the coconut tree, so the 
OPTIONS:
- spider plant grew shorter.
- coconut tree grew shorter.
Answer:
coconut tree grew shorter.