The answer is “who” referring to one person
Answer:
d) providing evidence from a reliable source
Explanation:
If you want to know whether or not a certain piece of information is credible, ask yourself whether or not it presents a solid theory, argument, debate, and evidence.
I think it's C.) Ability to see deeply.
Because a negative tone would include words such as "not", "can't", and/or "won't"