C. Classical humanism and realistic paintings became popular.
The Renaissance was a time of great learning and growth, it especially popularized humanism which directly translated into the art of that time period. So A, B, and D are unlikely to bee the correct choices. Therefore, C is the correct answer.
The Birmingham letter I have dream and still I rise
<span>3. digging irrigation canals.
Sumerians lived in present day Iraq which is mostly desert. Being arid with periods of rain, the region of Sumeria was difficult to cultivate crops. The Sumerians used a system of canals and gates to create watered plains with flooding and then closed them off during growing seasons. </span>