What Was the Hallmark of Napoleon's Method of Warfare

What was the hallmark of Napoleon's method of warfare?

A) the decisive battle that resulted in the destruction or crippling of the opposing army
B) besieging an enemy in order to capture their army intact
C) the use of small forces to infiltrate an enemy's territory and undermine their government
D) a disinterest in maneuver in favor of a slow, ponderous advance