It would be "d. the Magna Carta" that was <span>signed by King John in the 1200s granting certain rights to the English people and limiting the king’s power, since Parliament practically forced him to do so. </span>
D. <span>A primary source is written by someone who saw the event, but a secondary source is not.
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The Declaration of Independence
The Roman population grew quickly, thanks to surplus production of grains, olives and other crops. The extra population later helped Rome's military expansion by providing a large supply of troops. The surplus also helped Rome to establish trade ties with other Mediterranean powers, enhancing the city's economic might.
The answer is letters and artifacts
