Tim's phone service charges $23.86 plus an additional $0.17 for each text message sent per month. If Tim's phone bill was $28.11, which equation could be used to find how many text messages, x, Tim sent last month?

A.
$23.86x + $0.17 = $28.11

B.
$0.17x - $23.86 = $28.11

C.
$0.17x + $23.86 = $28.11

D.
$23.86x - $0.17 = $28.11

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