Roger,who Works for a Major Insurance Company,conducts a Study on Safe

Roger,who works for a major insurance company,conducts a study on safe drivers.He collects data from a sample of 1,000 drivers and examines their driving records over a 10-year period.This study most likely uses:

A) life-outcome data (L-data) .
B) observer-report data (O-data) .
C) test-report data (T-data) .
D) self-report data (S-data) .