All of the Following Are Correct About Vietnam in the Seventeenth

Multiple Choice

All of the following are correct about Vietnam in the seventeenth and early nineteenth centuries except

A) it was isolated from the major maritime trade routes.
B) it avoided losing territory to European colonial powers.
C) its population became increasingly diverse.
D) its population remained homogenous.
E) civil war split the Dai Viet into two squabbling territories.