Concept:Cash balance is found by considering only transactions that actually involve cash. Credit transactions are ignored.Explanation:Start with the capital introduced by cash: +50,000.Cash purchase of goods: −10,000.Cash sale of fixtures: +5,000.Credit sale to Lagbaja and credit purchase from Tamedu do not affect cash.Therefore, cash balance =50,000−10,000+5,000=45,000.Answer:Cash balance at 5/1/08 is #45,000.Correct option: C.