Question

what is the advantage of using a database?
i. the information found there has been selected by experts in the field.
ii. it includes scholarly information that has been published or presented for review.
iii. it is free and available to anyone who needs to do research for a class.

○ i only
○ ii only
○ i and ii
○ i, ii, and iii

Explanation:

• For statement I: Databases often curate information with expert input, so this is a valid advantage.
• For statement II: Databases include scholarly work (like journal articles, conference papers) that undergo review, so this is correct.
• For statement III: Many databases are not free; access may require institutional subscriptions or payment, so this is incorrect. Thus, I and II are correct.

Answer:

I and II