In a student paper, what would require the author to cite a source

Which resource might provide a student who is just starting a research project with a list of credible sources of information to consult? o a. a biography of an early computer scientist o b. an article on new developments in computing o c. a book about programming languages o d. an online encyclopedia article or wiki

The library carries many current books.what is the adjective

Answer the question on the screen plzzz