2) episode on the reasons (Arguments) discussed the issue at a keynote with supporting evidence to the reader to consider why it believes, based on the opinions of the author.
2) the reason (Arguments) discussed the key issues of the case. Along with supporting evidence For the reader to consider why we should believe in the opinion of the author.
2) when reason (Arguments) discussed the issues one by one point, with supporting evidence. So readers consider that why must follow the opinions of the author.