Question

multiple - choice question
what is the most important characteristic of the \enclosure\ system?
that each field had a fence around it to designate which field is which.
that each field rotated between fallow and used.

Explanation:

The enclosure system involved fencing off land to create private property. The key characteristic was marking individual fields with fences for ownership and boundary - setting, not field - rotation which is related to crop - rotation systems.

Answer:

That each field had a fence around it to designate which field is which.