While giving a presentation, a person should
revise and edit the speech.
time the speech in advance.
speak loudly and clearly.
practice using media.

the correct answer is c

Explanation:

All the other options is what you do before give your psa

hancock was president of congress when the declaration of independence was adopted and signed. he is primarily remembered by americans for his large, flamboyant signature on the declaration, so much so that "john hancock" became, in the united states, an informal synonym for signature.

explanation: