At March 31, Casey Co. had a book balance in its cash account of $11,100. At the end of March the company determined that it had outstanding checks of $1,260, deposits in transit of $760, a bank service charge of $50, and an NSF check from a customer for $235. The true cash balance at March 31 is: $10,600. $11,100. $10,815. $10,260.