Hello there, the correct answer is:
D.
Before it was established, two-four year terms were common because president Washington popularized it by his choice to do so. This was however never a written law, when the 22nd Amendment was created it was due to the fact President Roosevelt won four terms.
Hope this helped! :)
<span>The changes in agriculture in the Shang dynasty contributed to higher production levels. This in turn led to trade, settling and high birth rates. Thus, they became more organized which facilitated to other developments like writing.</span>
The answer is B. Durham boats
The second option is the best fit!