Question

Which factor made it most difficult for soldiers to cross the area between the trenches?

The land was too wide to be crossed.
The land was not claimed by either side, so access to it was impossible.
The land was defended by civilians who prohibited fighting.
The land was mined territory and was subject to artillery, shelling, and gunfire.

Answer 1

The correct answer is:
The land was mined territory and was subject to artillery, shelling, and gunfire.

Explanation: "No man's land" between trenches was exposed to constant artillery, machine-gun and rifle fire and was often mined and filled with barbed wire, making crossings extremely deadly.