GMAT Critical Reasoning (CR) | Re: Advertising is one of the key revenue generators for the website

Pre-think:
Ban adblock program --> User click on advertisement --> generate advertisement revenue

Assumes skill / will
Program can banish adblock without affecting advertisement

ANS: C
1. At least some users who currently do not use the mentioned applications will start using them in the future.
Negation: None of the users who currently do not use the mentioned applications will start using application in the future - DOES NOT IMPACT

2. People using such applications would not have clicked