I WILL REWARD THE BRAINIEST ANSWER: all you have to do is tell me the correct answer and WHY

Which statement accurately describes the Hundred Years' War?
A. Peasant archers were unable to affect the outcome of battles.
B. Armor and chain mail proved to be invincible in close combat.
C. Infantrymen wielding pikes became the most feared force in battle.
D. Mounted knights lost their dominant role on the battlefield.