Question

What is the difference between an index and a glossary?

One is found at the beginning of the book and the other is found at the end.
One is alphabetical and the other is not.
The index is a mini dictionary, whereas the glossary is not.
The glossary is a mini dictionary, whereas the index is not.

Answer 1

One is found at the beginning of the book and the other is found at the end.

Answer 2

the third one is the answer the glossary is a mini dictionary