Read the following excerpt carefully before choosing your answer.

This passage is from the beginning Senator Marco Rubio's April 2015 Speech at Miami's Freedom Tower.

"After months of deliberation and prayer about the future of our country, I have come here tonight to make an announcement on how I believe I can best serve her.

I chose to make this announcement at the Freedom Tower because it is a symbol of our nation's identity as the land of opportunity. And I am more confident than ever that despite our troubles, we have it within our power to make our time another American Century.

In this very room five decades ago, tens of thousands of Cuban exiles began their new lives in America. Their story is part of the larger story of the American miracle. How, united by a common faith in their God given right to go as far as their talent and work would take them, a collection of immigrants and exiles, former slaves and refugees, became one people, and together built the freest and most prosperous nation ever."

The purpose of placing the line, "Their story is part of the larger story of the American miracle. How, united by a common faith in their God given right to go as far as their talent and work would take them, a collection of immigrants and exiles, former slaves and refugees, became one people, and together built the freest and most prosperous nation ever," at the beginning of his speech is to (5 points)

establish his credibility with concrete examples, details, facts, or reasons

engage the audience emotionally through the use of connotative language

establish a sense of right or wrong to help the audience see the relevance of the issue

establish authority and credibility with specific facts to engage the audience