Adam was so sad, while Nick seemed calm, because
OPTIONS:
- Adam had suffered a real family tragedy.
- Nick had suffered a real family tragedy.
Adam had suffered a real family tragedy.

Lindsey cries and gets angry more often than Patricia because
OPTIONS:
- Lindsey is the less emotional one.
- Patricia is the less emotional one.
Patricia is the less emotional one.

Brian was able to calculate the difficult problem in his head unlike Randy because
OPTIONS:
- Brian was a mathematician.
- Randy was a mathematician.
Brian was a mathematician.