Young questioners ask "Is there an answer?"

Recently translation of a book whose name is ‘questions that guided shia young people’ compilation of one of Riaz local has been published with the name of neither the compiler nor the translator.
The translator has remarked in the beginning of his book that he has gathered most of the questions through ‘Defa site’.
He believes that the only successful sect among 73 sects is the one that obeys the prophet and his helpers. That sect solve their problems just by returning to gods book and the prophets tradition. He has said these by considering one hadis about 73 sects as a document and criterion. Then he has expressed a few questions in order to guide shia people (in his opinion). But his question consists of many inaccurate attributions paradoxes and manipulations that are at odd with his rightful claim.
Yes the result of this behavior is that he thinks thousands of Sonni people have been entangled by unclearness add abandoned their religion.
So with no hostility and just for discovering the reality other questions that have emerged from this complication is expressed. Perhaps with no fanaticism they are answered wisely and Muslims unclearness is solved and their unity is reformed on the base of reality.
You have said among 73 sects the only successful sect is the one that obeys the prophet and his helper. The question is,
first: who are these helpers?
Second: is any ones procedure that was the prophets helper rescue procedure? Even monafeghan that was pointed in 101st verse in soore Tobe and numerous prophets Ahadis.
Third: how can we tell monafegh from non-monafegh? Have history and ahadis been able to help us know them?
Who are monafeghin?
Fourth: if there is a conflict among helpers which one should we obey?