Why did Cosimo I de Medici commission Self Portrait by Giorgio di Antonio Vasari?

Draw conclusions  why might a cause like italian unification successfully draw people of very different backgrounds together?  

How did thomas hobbes’s interpretation of the social contract differ from john locke’s?

How could a works-cited list a reader determine whether to believe the claims you make in an essay? a. by synthesizing your conclusions into a simple objective summary o b. by proving that your claims are supported with credible evidence ) c. by allowing you to make claims without quoting other writers o d. by providing a clear organizational structure to your essay