What can we learn from Source A and Source B about why the Renaissance started in Italy in the 14th century?

Hello. You have not submitted the research sources to which the question relates. This prevents this question from being answered accurately. However, I will try to help you in the best possible way.

The research sources reveal important information about the development of a subject or, in this case, about a historical period. Thus, if the sources to which the question refers, show the reasons that led to the rise of the Renaissance in Italy, it is likely that they address various information about the social, political and economic changes that gave rise to the Renaissance movement.