The correct option is A Both statements are correct.
Monuments, coins, inscriptions, tools, weapons, utensils, etc., are all archaeological sources. They are unearthed by archaeologists after they get buried under land, long time ago. Biographies, bibliographies, autobiographies, diaries, commentaries, treatises, etc., are all literary sources. They are those that are written evidences, which provide information about a particular period of history.