Which word does NOT belong with the others? book, index, glossary, chapter

Given data

• Options: book, index, glossary, chapter.

Concept/Approach
Differentiate a whole entity from its components.

Step-by-step reasoning
Index, glossary, and chapter are parts or sections contained within a book.Book is the entire work that contains those sections.

Verification/Alternative
Containment test: you can have an index of a book, a glossary of a book, a chapter of a book, but not a book of an index.

Common pitfalls

• Choosing chapter because it is the most numerous; quantity does not affect category.

Final Answer
book