SOMEONE PLEASE HELP, I NNNEEEEEEDDD HELP!!!!!!!!!!

Using the Library of Congress system, select the general classification number beside the following book.
Treating the Common Cold

1. A
2. C
3. E-F
4. K
5. R
6. U

this book.......

What you should know about the law
1. A
2. B
3. H
4. K
5. I
6. U

and this book........

Aristotle's Poetics
1. A
2. B
3. H
4. K
5. I
6. U
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