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"Anyone who insists that music videos are an art form should also agree that television gave rise to an art form, since television gave rise to music videos." So we would rewrite this: if you insist that music videos are an art form, then you should also agree that television gave rise to an art form. IMVAF ==> ATGRAF not ATGRAF ==> not IMVAF (A) Anyone who claims that all vegetables are nutritious should also agree that some vegetables are harmful if eaten in large quantities. So we would rewrite this: If claim that all vegetables are nutritious, then should also agree that some vegetables are harmful if eaten in large quantities. (NOTE: don't get confused by the "if." That's merely modifying the necessary condition, as opposed to introducing the sufficient condition.) (A) CAVN ==> ASVHLQ not ASVHLQ ==> not CAVN Hope that helps! Please let us know if you have any other questions.

It just says "null" can you please repost your reply

Fixed! Please let us know if you need anything else.

not understanding.. is A the correct answer? I chose B, and the book has B as the right answer.

@jamesio no, (B) is the correct answer. The previous student was just interested in how (A) is diagrammed. Let us know if you have any other questions.