Ruth: To become a politician, a person should be required to have a diversity of experience. The more diverse one' s experience, the more one will understand the need for compromise. Stephanie: To be worthy of public trust, it is not enough, as you suggest, that one simply have varied experience. Such a person would not necessarily be worthy of public trust.
The response simply asserts a point of view opposite to Ruth's without giving reasons for it most accurately describes a flaw in the reasoning in Stephanie's response to Ruth's statements.