A distributor of outdoor yard lights has four suppliers. This pastseason, she purchased 37% of the lights from RetailerA, 33% from RetailerB, 21% from RetailerC, and the rest from Retailer D. In prioryears, 3% of RetailerA's lights weredefective, 8% of RetailerB's lights weredefective, 2% of RetailerC's weredefective, and 8% of RetailerD's were defective. When the lights arrive at thedistributer, she puts them in inventory without identifying the supplier. Suppose that a defective light string has been pulled frominventory; what is the probability that it was supplied by RetailerA?