Which of the following was NOT a key part of Burgoyne's plan to defeat the Americans during the Revolution: a. Retake up-state New York, conquering Fort Ticonderoga and other forts in the region
b. March down from Canada using Natives and British troops to take control of the western frontier
c. Have troops in New York sail south toward Yorktown to isolate Virginia by capturing that fort
d. Isolate the New England region, especially the colony of Massachusetts, from the other colonies

c. Have troops in New York sail south toward Yorktown to isolate Virginia by capturing that fort

Explanation:

Considering the available options, the statement that is not a key part of Burgoyne's plan to defeat the Americans during the Revolution is "Have troops in New York sail south toward Yorktown to isolate Virginia by capturing that fort."

The is because General Burgoyne's plan include

1. Retaking up-state New York, by conquering Fort Ticonderoga and other forts in the region. He was able to conquer Fort Ticonderoga on June 2, 1777, which was the initial success.

2. March down from Canada using Natives and British troops to take control of the western frontier. This involves using about British 8000 troops from Canada, then marched southward through New York by passing Lake Champlain and the Mohawk River.

3. Isolate the New England region, especially the colony of Massachusetts, from the other colonies. This is to be done by taking over the Hudson River and then release British General William Howe to attack Philadelphia.

Hence, in this case, the correct answer is Option C

d.he wanted to send diplomats to communist countries.

i know social security wasn't one.

explanation:

hope my answer has you!