The correct answer is the last option.
To credit a source means to ACKNOWLEDGE WHERE YOU FOUND A SOURCE. In order to avoid plagiarism, the writer has to cite the sources where he found information, being the most common citation formats APA or MLA. The citation style to use will depend on the topic to discuss in the paper.
Answer: A
Explanation: It does not state anything they have said above, so my best guess is A.
The civic responsibility are...
1. Support and defend the Constitution.
2. Participate in the democratic process.
3. Stay informed of the issues affecting your community.
4. Respect and obey federal, state, and local laws.
5. Respect the rights, beliefs, and opinions of others.
The first choice has the most reasonable and backed up claim.