I believe the answer is: 3. The canals and temples in the city show advanced engineering skills.
The site shows that the Aztec civilization had developed a very advanced irrigation system that utilize different elevation to obtain water for their agricultural field. Their system was later adopted by the spanish empire who invaded their territory.
The Truman doctrine and NATO were United States responses to the communist threat after WWII.
<span>D. World leaders signed an agreement to never go to war again.</span>
A person winning
someone losing and succeeding
