Explanation:

Correct option 1: Move

Sentences and their codes:

1. "Move Fast Or Left Behind" → 7 1 9 0 3

2. "Move Left Behind The Journey" → 4 9 1 5 3

3. "Your Journey Ended Fast" → 5 2 7 6

4. "The Life Ended Or Behind" → 0 8 4 9 2

?From the given two statements we can conclude  code of Move, Left or Behind can be from  1 , 9 and 3 but it is not which code if for what.

Lets compare this information with statement 4.

We find that 9 is code for Behind.

If Behind is coded as 9 then code for Move , Left is 1, 3 . Here again we can't say which code is for what.

So, if we are to select the which word is coded as 3 then it can be either move or Left. But we have only Move in the options . Code for 3 is Move.