It was at first impossible for anyone to realize what had actually happened. The smoke and fumes hid everything from sight, and hundreds of men were thrown into a comatose or dying condition, and within an hour the whole position had to be abandoned, together with about fifty guns. -British Field Marshal Sir John French, report on the second battle

Remainder Part:

What caused the scene described in this excerpt?

A. A tank attacking soldiers on a battlefield

B. An aerial bombing of an infantry unit

C. A poison gas attack on soldiers in the trenches

D. A submarine attacking a docked ship

Option C. A poison gas attack on soldiers in the trenches

Explanation:

The posionous gas attack was so devastating that almost every soldier who inhaled the gas was in coma or in a dying position. The site was to be immediately abandoned because of poisonous fumes.

The remainder options are incorrect because they use bombs instead of posionous gas attacks. Hence the option C is correct.

one was in america the other france

explanation:

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.