In How many number does 2 come before 4 & 4 come before 5?

There are 5 digits (0,1,2,3,4,5) .Assume that repetation of digits are not allowed & 4 Digit numbers are to be formed, in how many cases does 2 come before 4 & 4 come before 5? A. 16 B. 24 C. 34 D. 48 E. 96 Source – TIME

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