Assume that the following would be reasonable conversational questions/statements based on a respondent's previous statement about preferring to live on the streets. Which is a good probe?
A) "In what way is living on the streets better?"
B) "How is living on the streets better?"
C) "Tell me more about why living on the streets is better."
D) "How do you mean living on the streets is better?"

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First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

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