The school bought a bunch of new pencils, but didn't get any pens, because the 
OPTIONS:
- pens were low quality.
- pencils were low quality.
pens were low quality.

The therapy from my doctor was a lot better than the treatment from my friends because the 
OPTIONS:
- therapy is less professional.
- treatment is less professional.
treatment is less professional.

Michael introduced Jason to the sport of freshwater fishing, although 
OPTIONS:
- Michael grew up right next to a lake.
- Jason grew up right next to a lake.
Jason grew up right next to a lake.