How do these excerpts work together to develop a central idea

Here is the excerpts;

Read the excerpt from "Remembering to Never Forget: Dominican Republic’s ‘Parsley Massacre’” by Mark Memmott.

Passage A:

This week, people from around the world are expected to gather in the Dominican Republic for a "Border of Lights” commemoration that aims to "honor a tragedy long forgotten, and unknown to many people.”

Passage B:

Trujillo, as the Border of Lights website explains, fed and nurtured anti-Haitian sentiment and created an atmosphere that still excludes ethnic Haitians from becoming part of "the Dominican melting pot.”

The method his soldiers used in 1937 to try to identify those who would be killed was cruelly unique. When confronting someone in the lands along the border with Haiti, they would hold up a sprig of parsley and ask what it was. If the person responded by trilling the "r” in perejil (Spanish for parsley), he would be free to go. Anyone who didn't trill the "r” was thought to be a Haitian Creole speaker—and was likely to be killed.

Explanation:

These are the answer options;

A. Memmott uses a specific example to describe Trujillo’s cruelty.

B. Memmott argues that all memories should be commemorated.

C. Memmott explains that the Border of Lights commemoration is an adequate way of honoring victims.

D. Memmott explains that the tragedy is not well known today and then shows why it is worth remembering.

The answer you are looking for will be D. Memmott explains that the tragedy is not well known today and then shows why it is worth remembering.

Hope this helped!! :)

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)