I am confused between A and D.
I am writing what I am thinking, PLEASE CORRECT ME if I have any flaws in my thinking.
background: Studies show that only way to win is to purchase TV ad.
TV ad favors incumbents (premise) therefore it should be banned (conclusion).
(A) Incumbents have won eighty percent of the elections in Glen Isle in the last 10 years.
---- (only way to win is to purchase ad and it favors the incumbents and if they have won 80% then they must be purchasing the ad (becoz that's the single most effective way), therefore it is a premise and supports the conclusion.
---- Let's negate the statement " Incumbents have won only 10% of the elections in last 10 years, may be last election" does it destroy the conclusion? (
Not sure, can someone help me here????????)(D) Glen Isle incumbents have access to financial support in excess of that available to challengers.
----- Hence it makes the premise stronger that it favors the incumbents and it should be banned.
-----Negate the statement: If they have the same money then TV ad will not favor anyone and should not be banned.
I am more inclined towards D