Which set of numbers is ordered from least to greatest?
A249, 256, 309, 324
B309, 324, 249, 256
C324, 249, 256, 309
D256, 309, 324, 249
A249, 256, 309, 324
B309, 324, 249, 256
C324, 249, 256, 309
D256, 309, 324, 249