Answer:
The factors that affect self confidence are not having enough faith in yourself and letting what others say about you put you down
Explanation:
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Answer is C = Speaker
How? as the speaker is the only item on the list that displays any type of content, that being audio, it's the only feasible answer to this question.
Basic would be the most basic lanauge. It was created in M.I.T. and was one of the first programming lanauges.
Answer:
a. Routing protocol
Explanation
Routing protocol is a layer 3 (Network layer) protocol used by routers to exchange information about available routes , their associated costs and delays.