Concept:The total money available remains the same, so the number of shirts is found by dividing the total amount by the new price.Explanation:Total money Kojo has =15×GH₵4.00=GH₵60.00.New price per shirt =GH₵5.00.Number of shirts =GH₵5.00GH₵60.00=12.Answer:Kojo can now buy 12 shirts.Correct option: A. 12.