huizhenchen huizhenchen 16-10-2020 Mathematics contestada DonaldandLauracompetedina1kmrace.DonaldcompletedtheraceinCCVII seconds and Laura completed it in CCCXLVIII seconds. By how many seconds (in Roman numerals) was Donald ahead of Laura? a. DLV b. CXLIV c. CXL d. CXLI