When researching a topic, it is important to use sources that are o biased
o inaccurate
o credible
o unreliable

C. credible

Explanation:

A credible source is an information source that is unbiased, trustworthy and reliable. Also, a credible source is typically backed up by evidence from various information channels and should be accurate.

In order to validate a credible source, it is necessary to ensure that the information provided is checked against other reliable sources to verify its level of accuracy.

As a rule, any credible source should have multiple ways to validate the informations being presented.

Hence, when researching a topic, it is important to use sources that are credible so as to avoid peddling fake, unreliable, false and unfounded informations.

answer: hjnh

explanation:

hhjjk

"the tune the he might never know again." this part build anticipation. dexter got extremely happy by the piano tune. he could see what he was living at that moment in his life throught this feeling. the reader might want to learn more about his happy life. in fact, he called it a state of   'ecstasy'. the fact that he had got in a mood of intense appreciation and that everything about him was extremely bright and glamorous might lead the reader to feel that this state of happiness may not last long. the two parts from the excerpt that exemplify the anticipation are: " the sound of the "; " it was a know again."