Which technology helped bring trench warfare to a stalemate?
O machine guns
O air reconnaissance
O barbed wire
O mines

Respuesta :

Answer:

according to the website the answer is;

Explanation:

Tanks. Tanks were developed by the British Army as a mechanical solution to the trench warfare stalemate. They were first used on the Somme in September 1916, but they were mechanically unreliable and too few in number to secure a victory.