okay My answer is C ...
Explanation
The first clause is simple past so to maintain parallelism both verbs recognise and interact must be in simple past thus eliminating D and E from the options
Next, for comparing two persons we use between more than two we use among...
So remove B as it uses among for each other...
as at the end comparison is done among various tribes, they can be more than two, so cannot use between
so eliminate A
thus, C seems to be the right answer ....
I hope it is the right answer and right explanation
please feel free to argue if i am wrong it will be greatly appreciated...
Thank for the question