The Correct answer would be D. Caribbean Sea (:
Ancient India<span> is often called the Harappan </span>Civilization<span>because one of the </span>ancient<span> cities was called Harappa. Harappa was just one of 1500 cities in the Indus River Valley. Another well-known city is called Mohenjo-Daro. Historians estimate </span>Ancient India<span> to be the biggest of all four early civilization.</span>
