Final answer:
Benedict Arnold's failed attack on Quebec in December 1775 was unsuccessful, and Quebec remained under British control. Arnold was shot in the ankle, and Lieutenant Colonel Daniel Morgan and his men were trapped and forced to surrender.
Step-by-step explanation:
The outcome of Benedict Arnold's failed attack on Quebec in December 1775 was that the attack was unsuccessful and Quebec remained under British control. Arnold had planned to capture Quebec and form an alliance with the French Canadians against the British, but the Americans failed to take the city and convince the French Canadians to join their cause. Arnold was shot in the ankle during the attack and was unable to continue, while Lieutenant Colonel Daniel Morgan and his men were trapped and forced to surrender.