Problem: Continue the following story.

To fix a wheel you need to have a good wrench handy.  The 
OPTIONS:
- wheel needs to be clamped.
- wrench needs to be clamped.
Here's how I want to continue it: wheel needs to be clamped.

Problem: Continue the following story.

I prefer sending emails much more than I like sending letters, because the 
OPTIONS:
- emails are convenient.
- letters are convenient.
Here's how I want to continue it: emails are convenient.

Problem: Continue the following story.

The medical records were stored on disk instead of paper because 
OPTIONS:
- disk was more reliable .
- paper was more reliable .
Here's how I want to continue it:
disk was more reliable .