Respuesta :

Answer:

Dictionaries/encyclopedias (may also be secondary), almanacs, fact books, Wikipedia, bibliographies (may also be secondary), directories, guidebooks, manuals, handbooks, and textbooks (may be secondary), indexing and abstracting sources.

Explanation:

hope this helps. i don't know the options but if u see any of them from this list then its right

Answer:

an online enclopedia or dictonary

Explanation: