Which is an accurate statement about the Aztec Empire? 
 A.
 It created a vast system of roads to link its mountainous empire
 B.
 Its capital city Tenochtitlán was built on an island in the middle of a lake.
 C.
 It was the earliest civilization in the Americas.
 D.
 It extended from southern Mexico across Belize and Guatemala into parts of Honduras and El Salvador.