A.  There is no hierarchy between unlinked groups

B.  The group that is right ranks higher than the group that is to theleft

C.  The group that is above or leftmost ranks higher than the group that is to right or below it

D.  None of the above

Correct Answer :
The group that is above or leftmost ranks higher than the group that is to right or below it
Explanation :
No Explanation available for this question
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