Answer:
A. within a reasonable time after detecting the defect.
Step-by-step explanation:
If a buyer accepts defective goods and wants to hold the seller liable, the buyer must give the seller notice of the defect within a reasonable time after detecting the defect.
If the buyer takes a longer time to notify the seller, the buyer may be held responsible for damaging the goods and deprived of any refund or compensation attached to defective goods.