Im sorry but try to look this up
The answer is B i hope this helps!!!!
Answer:
That they would fail without the book. They are not studying because they can just use a book to cheat.
Explanation:
Hey there!
First, make sure you know what an abstract noun is.
Abstract Noun-<span>a noun denoting an idea, quality, or state rather than a concrete object.
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In this case, the answer is D(Logic is easily understood)