The right choice to your question would be D. Splitting work equally between two people.
The building of temples and great cities without modern machinery, using astronomy to predict astrological cycles and plant crops and using their language to communicate and measure time are some of the Mayans most notable achievements.<span> During a 600-year period of time, which was from 300 A.D. until 900 A.D., the Mayans made many great achievements in science, communications, engineering and agriculture</span>
<span>The 15th Amendment gave all men the right to vote and did not allow for discrimination of that right based upon race, skin color, or previous condition of being a slave or indentured servant. This was one of the 3 amendments passed as a direct effect of the Civil War.</span>