HEL In a five sentence (minimum) paragraph explain why the Siege of Savannah is so significant

Explanation:

The Siege of Savannah (September 23 to October 18, 1779) refers to the failed attempt by American and French forces to retake the port city from its British occupiers. It was one of the costliest battles of the Revolutionary War in terms of casualties.

the answer might be either a or c. can't be too sure , because i searched the web, but no valid answers came through.

the answer is

a) revise existing treaties

b) do away with political alliances

c) prevent the spread of communism

d) bring an end to european colonization

the main goal of the southeast asia treaty organization was to prevent the spread of communism in southeast asia.