Criticisms of the Kennedy family are frequently unfounded. A recent article in a tabloid magazine has the potential to damage the reputation of Sen. Kennedy and some of his close associates. The criticisms in the article should be disregarded, however, because the author's anti-Kennedy attitude is well known, and his criticisms will convince only people like himself-people who have never had real responsibility and are not qualified to judge.

The argument above includes which of the following questionable techniques?

A) The word 'responsibility' is used in a very ambiguous sense.

B) It assumes that attacking the source of a claim is sufficient to disprove the claim.

C) It assumes that the majority of people do not approve of the Kennedys.

D) It appeals to a person of unreliable authority as a supporter of its position.

E) It confuses cause and effect.

Source: 800Score
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Target - 720-740
Project PS Butler - https://gmatclub.com/forum/project-ps-butler-practice-everyday-280904.html
http://gmatclub.com/forum/information-on-new-gmat-esr-report-beta-221111.html
http://gmatclub.com/forum/list-of-one-year-full-time-mba-programs-222103.html

B is correct here ....waiting for OA