The phrase best describes the overall purpose of the speech is option B. to comfort people who are upset about the Challenger disaster
<h3>What is Space Shuttle Challenger disaster?</h3>
Space Shuttle disaster happened when an American shuttle went into space but crashed.
The American president Ronald Reagan gave a speech to address the situation and to comfort the citizens about the loss of their dear ones.
Therefore, The phrase best describes the overall purpose of the speech is option B. to comfort people who are upset about the Challenger disaster.
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