Answer:
I think it might be D. (if you don't want to risk your grade you can stay how you already are)
Explanation:
<span>The economic system that was most prevalent in Europe of the Early Middle Ages was the manorial system, which some people equate with feudalism and some don't. During the Middle Ages, a mercantile system also developed slowly, until it became very important in the Late Middle Ages and, ultimately, dominant in the Renaissance.</span>
Cumulus clouds form in rising air. The cloudy air becomes warmer than its surrounds and continues to rise as a buoyant thermal. These thermals transport the cloud droplets upwards; they grow from more condensation or from colliding with other drops