Which is the best addition for providing commentary on the quotation from President Obama? S. This imagery provides evidence of the catastrophe and builds sympathy for the people and for the president's plan to use force.

The president's words have an emotional appeal that causes the audience to reject his planned use of force.

The president's words establish logos by using reasoning through an analogy and by using deductive reasoning.

This imagery appeals to the emotions of the audience and connects events in Syria to Iraq and Afghanistan to support the use of force.

(excerpt attached)​

The best addition for providing commentary on the quotation from President Obama is:

A. This imagery provides evidence of the catastrophe and builds sympathy for the people and for the president's plan to use force.

Explanation:

The excerpt in the attachment ends with a quote from the president's speech. It contains imagery, a literary and rhetorical device that helps describe images vividly. The president's purpose in describing the dead bodies is to convince people to accept the use of force against the use of chemical weapons by appealing to their emotions - sadness, sympathy, horror, etc.

With that in mind, we can safely choose letter A as the best addition to the excerpt:

A. This imagery provides evidence of the catastrophe and builds sympathy for the people and for the president's plan to use force.