Salesperson: A shopper will refuse to purchase an overpriced

Please provide your detailed explanations. Thank you for your time!

Salesperson: A shopper will refuse to purchase an overpriced product if she has researched the prices of similar products at competing stores. All enthusiasts of any type of entertainment will have researched the prices of products germane to that type. Thus we will not sell any of our high-performance external graphics cards, since they are overpriced and only computer gaming enthusiasts would purchase such cards.

The pattern of reasoning in which one of the following arguments is most similar to that in the salesperson's argument above?


(A) Most amateur critics will not review a book if they have reason to believe they will not enjoy reading it. Nobody who dislikes a certain genre of music will enjoy reading a book on the history and theory of that genre. Thus nobody will review your book on the history and theory of country music, since no amateur critics enjoy listening to country music.

(B) No female guppy will mate with a male guppy if the male is visibly less healthy than other males in the school. All female guppies are aware of the relative health of the males in their school. Therefore, a visibly unhealthy male will have trouble mating.

(C) Famous actors and actresses will support an organization only if they believe that their cause is just. Patricia does not believe that the cause of Green Thumbs Up is just. Therefore, no famous actors and actresses will support Green Thumbs Up, since Patricia is a famous actress.

(D) Nobody will tour an island getaway if they believe other islands in the area have more attractive beaches. Anybody taking a vacation in this stretch of islands will have researched all of the beaches on all of the islands in the area. So our tourism agency should improve the public image of our beaches.

(E) A union will not endorse a candidate who does not support their interests if they are aware of his positions and his opponents' positions. Any union whose workers are confined to a specific sector is aware of candidates' positions relating to that sector. Only unions whose workers are confined to the education system endorse candidates for the school board, and none of our party's candidates support the interests of these unions. So none of our party's candidates for the school board will be endorsed by a union.