揽瓜阁逻辑做题小分队Day112 - ChaseDream

Book publishing executive: I am becoming increasingly convinced that the interaction between book sales and literary quality is not a simple one. For example, I now believe that no number one best seller will win the major literary prizes. But I also believe that all major literary prize winners will have unusually high long-term sales.
If the beliefs that the book publishing executive claims to hold are true, which of the following must also be true on the basis of them?
(A) No books with unusually high long-term sales are number one best sellers.
(B) At least some number one best sellers are not books with unusually high long-term sales.
(C) All books with unusually high long-term sales are number one best sellers.
(D) At least some books with unusually high long-term sales are not number one best sellers.
(E) No number one best sellers have unusually high long-term sales.

Sodium sulfate has long been used in powdered laundry detergents as a filler to add bulk, and has also been used in concentrated liquid detergents in lesser amounts. As concentrated liquid detergents become increasingly popular, detergent manufacturers have been buying less sodium sulfate. Yet within the last year sodium sulfate producers have been surprised by an increase in demand from detergent manufacturers, given that sales of powdered laundry detergent remained unchanged.
In light of the information given, which of the following, if true, most helps to explain the increased demand for sodium sulfate?
(A) Many consumers who own older washing machines believe that the concentrated liquid detergents are unsuitable for use in their machines.
(B) There are no ingredients less expensive than sodium sulfate that detergent manufacturers could use in place of it in their powdered laundry detergents.
(C) Detergent manufacturers will often sell both a powdered detergent and a concentrated liquid detergent under the same brand name, even though the two products are obviously not exactly the same.
(D) Detergent manufacturers have discovered that increasing the amount of sodium sulfate in concentrated liquid detergents makes it possible to omit certain more expensive ingredients.
(E) One of the reasons powdered and liquid detergents contain bulk fillers is to make it unnecessary for consumers to measure precisely the amount of detergent they need to use.