A retailer buys an item from a wholesaler and marks up the price by 20%. When time passes and the item is not sold, he discounts the item by 25%. The expression below represents the discounted price of the item.
p+20%p−25%(p+20%p)
Which of the following statements is true?
A: The discounted price is p−25%p, indicating that the retailer will lose 25% of his investment.
B: The discounted price is p−25%p, indicating that the retailer will lose 75% of his investment.
C: The discounted price is p−10%p, indicating that the retailer will lose 10% of his investment.
D: The discounted price is p−10%p, indicating that the retailer will lose 90% of his investment.