A company employee generates a series of five-digit product
codes in accordance with the following rules:
The codes use the digits 0, 1, 2, 3, and 4, and no others.
Each digit occurs exactly once in any code.
The second digit has a value exactly twice that of the
first digit.
The value of the third digit is less than the value of the
fifth digit.
Any of the following pairs could be the third and
fourth digits, respectively, of an acceptable product
code, EXCEPT:
A 0, 1
B 0, 3
C 1, 0
D 3, 0
(E) 3, 4
My answer is just checking to see if I'm correct.