Will give out medals. Solve the problem.

The girls in the craft club made 254 friendship bracelets for the craft sale. They sold them for $0.75 each. They sold 90% of the bracelets. How much money did the girls collect?

Which explanation correctly describes how to check whether the answer is reasonable?

Question

Will give out medals.  Solve the problem.
 
The girls in the craft club made 254 friendship bracelets for the craft sale. They sold them for $0.75 each. They sold 90% of the bracelets. How much money did the girls collect? 
 
Which explanation correctly describes how to check whether the answer is reasonable?

anonymous · Answer

A.
Answer: $171.45
Explanation: If they sold the bracelets for 50¢ each they would have made $254. They sold the bracelets for 75¢ each, so they made less than $254.
 
 B.
Answer: $171.45.
Explanation: If they sold 250 bracelets they would have made $187.50. They only sold 90% of the bracelets, so they made less than $187.50.
 
 C.
Answer: $100.50.
Explanation: If they sold 100% of the bracelets they would have made $190.50. They only sold 90% of the bracelets, so that would be $90 less or about $100.