Final answer:
General Braddock's mistakes included ignoring Native American advice and disregarding the forest terrain, leading to a devastating ambush in the French and Indian War. The correct option is A.
Step-by-step explanation:
General Edward Braddock made several strategic errors that endangered himself and his forces during the campaign to capture Fort Duquesne in the French and Indian War. Ignoring the advice of Native American guides and disregarding the forest terrain, which led to an ambush, were two significant choices that led to the British defeat.
Braddock also relied heavily on traditional European military tactics, which were not suitable for the North American wilderness, contributing to the disorganization and high casualties suffered by his troops upon facing the French and their native allies.
The Battle of the Wilderness, on July 9, 1755, demonstrated the drastic consequences of these poor choices, resulting in a panicked retreat and Braddock's own mortal wounding in the chaos. The correct option is A.