Insurance companies sometimes use nonprobability sampling. Select the response that illustrates an insurer's use of nonprobability sampling. An auditor at the Periwinkle Insurance Company used a random number generator to select a sample of 200 claim files from a total of 1,000. At the Heliotrope Insurance Company, an auditor selected a sample of 100 underwriting records from a group of 500 records by starting at the beginning of the set of records and then selecting every fifth record. In an effort to determine the kinds of retirement products its customers need, the Lavender Insurance Company surveyed customers between the ages of 55 and 60. A call center manager at the Mauve Insurance Company evaluated the performance of customer service representatives by monitoring one call every 15 minutes