Read this excerpt from “President Ronald Reagan's Address to the Nation” following the explosion of the Challenger space shuttle. Nineteen years ago, almost to the day, we lost three astronauts in a terrible accident on the ground. But we've never lost an astronaut in flight; we've never had a tragedy like this. And perhaps we've forgotten the courage it took for the crew of the shuttle.

How is repetition used in this excerpt?

The contraction “we’ve” is used three times to express sadness.
The contraction “we’ve” is used three times to express courage.
The contraction “we’ve” is used three times to express unity.
The contraction “we’ve” is used three times to express terror.

 The contraction “we’ve” is used three times to express terror.

Explanation: As you notice right after every little sentence, there was something that stated terror like

Nineteen years ago, almost to the day, we lost three astronauts in a terrible accident on the ground. But we've never lost an astronaut in flight; we've never had a tragedy like this. And perhaps we've forgotten the courage it took for the crew of the shuttle.

The answer would've been "courage" but the las sentence takes the cake,  

Sorry about the inconvenience, I overlooked it

D The contraction “we’ve” is used three times to express terror.

Explanation:

c. to understand which information will best persuade your readers. (apex) correct answer.

the correct answer is d. a discussion of specific uses of alliteration

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when you are critiquing or evaluating a poem, you will mostly pay attention to the theme, as well as figures of speech and rhythm. alliteration is a figure of speech where consonants are repeated in neighboring words - and it is important for analysis of sound and rhythm, which is why it might appear in the evaluation of that poem.