Select the fallacy or bad argument technique which occurs in the following argument: We should preserve marriage as a relationship between a man and a woman. If we undercut traditional ideals of marriage by allowing gay people to marry, before you know it we'll be allowing polygamous relationships, and then incestuous ones, and people will end up being able to marry their own brothers and sisters! No gay marriage!
A) Post hoc ergo propter hoc
B) Smokescreen
C) Fallacy of denying the antecedent
D) Slippery slope

Question

Quizplus · Accepted Answer

The argument is using the slippery slope fallacy by suggesting that if we allow gay marriage, it will lead to allowing other types of marriages, like polygamous and incestuous ones. There is no logical reason to assume that allowing gay marriage will inevitably lead to those other forms of marriage.

Select the Fallacy or Bad Argument Technique Which Occurs in the Following