Question

during world war i, the second phase in battles that crossed enemy lines and approached trenches was
○ heavy bombardment.
○ sniper fire.
○ aerial bombing.
○ infantry attack.

Explanation:

In World War I, the typical battle phases when attacking enemy lines and trenches: first was heavy bombardment to soften defenses, then the infantry attack to advance across lines and approach trenches. Sniper fire was more of a harassment/defensive tactic, and aerial bombing was less developed in the early phases for this kind of frontal attack sequence. So the second phase here is infantry attack.

Answer:

D. infantry attack (assuming the options are labeled A to D with D being infantry attack)