The following question is based on the given five, 3-digit numbers.
(Left) 721, 463, 227, 316, 627 (Right)
(For example, 456: 6 digit in unit's place, 5 = digit in ten's place, 4 digit in hundred's place)
NOTE All operations to be done from left to right.
If the digit in unit's place of each number is interchanged with the digit in hundred's place of the same number, which original number will become the largest number?
A316
B627
C721
D227