________ is a person?s interpretation of a symbol

Some publications are not so easy to classify as research sources. For example, Psychology Today and National Geographic can be considered both _____ and _____ publications

a. biographical; statistical b. open; deep c. primary; secondary d. scholarly; popular

Fabian is delivering a speech on modern architectures. In this scenario, which of the following is an effective strategy to increase his derived credibility?

a. He can quote an unknown international scholar instead of a local expert. b. He can dress formally and appropriately when delivering the speech. c. He can refrain from sending nonverbal messages. d. He can explain his or her expertise after giving the speech.