A researcher records the number of employees of each of the IT companies in the town of Westmoore. The results are summarized in the table. Find the class limits of the third class. Number of Employees Number of IT Companies 0-499 36 500-999 21 1,000-1,499 10 1,500-1,999 2,000-2,499 6 10 O A. lower limit: 1,UUU; upper limit: 1,500 B. lower limit: 999.5; upper limit: 1,499.5 C. lower limit: 1,000; upper limit: 1,499 D. lower limit: 999; upper limit: 1,500