Which statement about credible sources are true?
A credible source will have multiple ways to validate.
A credible source will come from online sources only.
A wiki page can be used as a credible source.
All credible sources come from .gov and .org websites.

a credible source will have multiple ways to validate

Explanation:

what ever source you use dosen't matter as long as you can back of your information then your source is good

answer: "the beating heart symbolizes the narrator's conscience, or his sense of guilt and wrongdoing" so its b

explanation:

"to look at him, or hear him describe it, he had no guilt. however, poe decided to symbolize this man's subconscious guilt through the heartbeat."