Answer:
d. Both a and c.
Step-by-step explanation:
The correct answer is d. Both a and c. A source that includes citations (such as a bibliography or in-text citations) or has undergone some form of review or editing (such as fact-checking, editorial review, or peer review) is more likely to be reliable and credible. Information that matches personal beliefs or common sense may not necessarily be accurate or reliable, so it is important to rely on verifiable evidence and sources.