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1、The mere fact that ticket sales in recent years for screenplay-based movies have exceeded those for book-based movies is insufficient evidence to conclude that writing screenplays now provides greater financial opportunity for writers. 2、It is possible that fees paid by movie studios for screenplays will decrease in the future relative to those for book rights. 3、The argument fails to rule out the possibility that a writer engage in both types of writing as well as other types. 4、In any event, the advertisement provides no justification for the mutually exclusive choice that it imposes on the writer. 5、The argument simply equates success with movie ticket sales, which is unwarranted. 6、The author assumes that physical capabilities are the only attributes necessary to operate a motor vehicle. 7、Moreover, the author provides no evidence that the realism of color photography is the reason for its predominance. 8、This assumption presents a false dilemma, since the two media are not necessarily mutually exclusive alternatives. 9、Common sense tells us that a photographer can succeed by working in both media. 10、The argument ignores the factorssuch as initiative, creativity, technical skills, and business judgmentthat may be more important than the choice of medium in determining success in photography. | 
