[Q]: How does the sentence end?

After the crash, Tanya suffers from amnesia, but Cynthia does not, so 
OPTIONS:
- Tanya can't remember things.
- Cynthia can't remember things.

[A]: Tanya can't remember things.
QUES: Continue writing.

At the bakery, Logan scolded Craig after flour was spilled all over the floor because 

OPTIONS:
- Logan was angry.
- Craig was angry.
+++++++++
ANS: Logan was angry.
Problem: How does the sentence end?

Justin had a broken jaw and could not eat the same dinner that Robert could, 
OPTIONS:
- Justin 's mouth could not function.
- Robert 's mouth could not function.
Answer: Justin 's mouth could not function.
sentence: Nelson wanted to make some potatoes for dinner and Derrick didn't because  OPTIONS:
- Nelson loved the taste of starch.
- Derrick loved the taste of starch.
complete: Nelson loved the taste of starch.
Mark prefers headphones over ear plugs, because the 
OPTIONS:
- headphones feel more comfortable on his ears.
- ear plugs feel more comfortable on his ears.
headphones feel more comfortable on his ears.
Problem: Continue the following story.

Justin worked on the house to keep ants out and Derrick didn't help, since 
OPTIONS:
- Justin was more industrious.
- Derrick was more industrious.
Here's how I want to continue it:
Justin was more industrious.