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I ' m sorry . I think there 's defending one 's design esthetic and choices , and then there 's being rude to others , and she 's crossed the line , and to TIM GUNN . Of all people .

What may be the reason Tim Gunn is so important in this conversation ?
Choose from: (A). Because he does n't know anything about design .; (B). Because he is so sensitive .; (C). Because he is an average guy .; (D). Because he is a big name in design .;
(D).