Problem: Continue the following story.

Aaron worried college was too expensive and he wouldn't be able to finish it but Matthew disagreed, 
OPTIONS:
- Aaron had a hard time explaining why.
- Matthew had a hard time explaining why.
Here's how I want to continue it: Matthew had a hard time explaining why.

Problem: Continue the following story.

I removed my license from my wallet and moved it to my pocket, as the 
OPTIONS:
- wallet was vulnerable to theft.
- pocket was vulnerable to theft.
Here's how I want to continue it: wallet was vulnerable to theft.

Problem: Continue the following story.

Aaron showed Justin how to make a multiple layered cake for the birthday because 
OPTIONS:
- Aaron was a professional baker.
- Justin was a professional baker.
Here's how I want to continue it:
Aaron was a professional baker.