How are glossaries different from dictionaries?

A.Glossaries contain only the words used in a particular book.

B.Glossaries provide synonyms and antonyms for all words.

C.Glossaries provide definitions for all words.

D.Glossaries only contain the pronunciations of words.

2 answers

A. Glossaries contain only the words used in a particular book.
Ok, seriously. SOMEBODY OTHER THAN A BOT PLEASE