The point of an "Entertain speech" is, of course, to be entertaining. The best answer for this would be "The best thing about being a twin" because the rest of the options are examples of "Informative speech".
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A. The woman who is crossing the street is my ex-wife</span>
Answer:
It creates a sarcastic tone.
Explanation:
The definition of the word <em>balmy </em>is <em>characterized by pleasantly warm weather.</em> This word is used to describe the minus 20 degrees, which is horribly cold, but still not as cold as Alaska usually is. This combination of words creates a paradox - how can minus 20 degrees be balmy? It is not - the author is just being sarcastic. That's how the use of the word <em>balmy</em> creates a sarcastic tone.