Problem: Continue the following story.

The man took muscle relaxant medicine to prepare himself for the colonoscopy procedure, because the 
OPTIONS:
- procedure was invasive.
- medicine was invasive.
Here's how I want to continue it: procedure was invasive.

Problem: Continue the following story.

Mary had to ask Carrie for help with their fish tank because 
OPTIONS:
- Mary had no experience with fish.
- Carrie had no experience with fish.
Here's how I want to continue it: Mary had no experience with fish.

Problem: Continue the following story.

The Bowflex machine will not fit through the doorway because the 
OPTIONS:
- Bowflex is too narrow.
- doorway is too narrow.
Here's how I want to continue it:
doorway is too narrow.