A legend is a caption, a title or brief explanation appended to an article, illustration, cartoon, or poster.
A key is an explanatory list of symbols used in a map, table, etc.
Answer:you already answered but d
Explanation: i did it
Ok so i will name them off as on 1-6. top is 1 2 3, and bottom is 4 5 6. ok
Glossary: 4
Dictionary: 2 & 6
Thesaurus: 3 & 5
Online Encyclopedia: 1