Base your answer on the passage below and on your knowledge of social studies.. . a weary, exhausted, nerve-racked group of men it was indeed that, about noon november 1, assembled in a gully north of sommerance [france] to rest and dig in for the night. the artillery was still firing furiously, but the enemy's barrage [bombardment] had ceased very suddenly about 10: 00 a. m. and now only occasional shells from long-range rifles would explode in the vicinity. the weather was gloomy and the moist air chilled one to the bones. yet it was with that meticulous [methodical] care that is characteristic of worn-out men, that we prepared our foxholes, carrying boards and iron sheeting from abandoned machine-gunners' dugouts in order to make our "houses" as comfortable as possible, even though only for one night. . source: william l. langer, gas and flame in world war i, knopf/borzoiwhich means of warfare is described in this passage? a)guerilla b)nuclear c)biological d)trench