In a toy exhibition, a machine processes a given input by the following rule. Participants are shown one by one till it reaches its last step. Following is an illustration of the working of this machine.
Input: sui me ato fezen u no
Step I : fe sui me no ato zen u
Step II : no fe sui u me ato zen
Step III : u no fe zen sui me ato
Step IV: zen u no ato fe sui me
Step V : ato zen u me no fe sui and so on.
Now attempt the questions given below.
Which 'Of the following correctly describes the 'machine logic' in generating various steps based on the given input?

Options

A. Each step is generated on random basis.
B. Words/letters are finally arranged in dictionary order.
C. The seventh letter interchanges with the fourth every time.
D. None of these

Answer

D

Explanation

Here the rule followed is: In each step the fourth word becomes first word and the last word becomes fourth word and all other words shift one place rightwards except the third, which shifts two place rightwards.
In order to make things easier, let us represent the words digitally from 1 to 7.

The rule is given above.