Usually, the first question on a game is a list question. When there’s no list question, it’s a strong sign that you were expected to make many deductions.
A is wrong because there must be at least three books on the bottom shelf. The bottom shelf must have more books than the top shelf.
B is CORRECT, as shown by this diagram which obeys all of the rules.
C and D are wrong because K and O can’t be on the bottom shelf. K has to be above FM, and O has to be above L.
E is wrong because M needs to go with F.
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