Council president: Councilmember Smith has proposed a new city ordinance prohibiting the use of the “bait-and-switch” sales tactic.
Smith must have amnesia. Four years ago he owned an appliance store that was famous for its use of bait-and-switch. Clearly, Smith's proposed ordinance does not even merit consideration
The council president's reasoning is most vulnerable to criticism on the grounds that the president
(A) dismisses the proposed ordinance
because of its source rather than because of its content - CORRECT. The blue text suggests so. It is sub conclusion based on which final conclusion(highlighted text) is made.
(B) takes a single fact that is
incompatible with a claim as enough to show that claim to be false - WRONG. Close call. But "incompatible" possibly between the opposite of claim and reasoning presented, and not between claim and reasoning presented.
(C) fails to
make a needed distinction between deceptive sales tactics and legitimate methods of increasing sales - WRONG. Altogether wrong. Irrelevant.
(D) draws a
conclusion that simply restates a claim presented in support of that conclusion - WRONG. Neither there is any reinstatement nor it is in support.
(E)
generalizes from a limited number of instances of a certain kind
to a instances of that kind - WRONG. "That kind" is not acceptable since the "kinds" are different. Though generalizing is fine.
Answer A.