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 fourth option. The area between trenches (no man's land) was exposed and often mined, covered with barbed wire, and raked by artillery, shelling, and machine‑gun fire, making crossing extremely deadly.