It was always very easy for Kayla to fall asleep but not Cynthia because 
OPTIONS:
- Kayla was very relaxed.
- Cynthia was very relaxed.
Kayla was very relaxed.

Lawrence developed carpal tunnel syndrome at a faster rate than Ian did because 
OPTIONS:
- Lawrence used the computer a lot.
- Ian used the computer a lot.
Lawrence used the computer a lot.

The children played soccer using a balloon instead of a ball, because the 
OPTIONS:
- balloon seemed exciting.
- ball seemed exciting.
balloon seemed exciting.