His challenges were easier than my problems, because the
OPTIONS:
- challenges had a lot fewer steps.
- problems had a lot fewer steps.
challenges had a lot fewer steps.

we replaced the barbed wire fencing with the electric fencing because the
OPTIONS:
- barbed was unreliable.
- electric was unreliable.
barbed was unreliable.

Tina ate less at the party than at her house because there were only a few types of food at the
OPTIONS:
- house .
- party .
party .