Excom sells radios and each unit carries a two-year replacement warranty. The cost of repair defects under the warranty is estimated at 5% of the sales price. During September, Excom sells 100 radios for $50 each. One radio is actually replaced during September. For what amount in September would Excom debit Product Warranty Expense? Oa. 530 Ob 250 Oc550 Od 5120