Final answer:
The true statement about the speeches in the Unit is that the tone of President Reagan’s speech is more serious and calm than President Carter’s.
Step-by-step explanation:
The statement that is true about the speeches in the Unit is C) The tone of President Reagan’s speech is more serious and calm than President Carter’s.
In Carter's speech, he addressed the challenges faced by the nation but failed to provide a plan to tackle those problems. The speech was seen as lacking reassurance and was remembered as Carter's 'Malaise' speech. On the other hand, Reagan was known for his strong scripted speeches, but when speaking without a script, he relied on clichés and empty platitudes, often telling stories from popular films as if they were historical events or part of his own life.