which of the following is an accurate chronology of cold war conflicts? (answers are organized to read left to right, from earliest to latest.)

a. the korean war --> the cuban missile crisis --> the greek civil war

b. the chinese civil war --> the u-two incident --> the greek civil war

c. the greek civil war --> the korean war --> u. s. involvement in vietnam

d. u. s. involvement in vietnam --> the korean war --> the malayan emergency