One of the empowering resources that you develop by studying public speaking is or the ability to listen and analyze information you hear so that you can judge its accuracy and relevance.

One of the empowering resources that you develop by studying public speaking is critical thinking, or the ability to listen and analyze information you hear so that you can judge its accuracy and relevance.

Explanation:

Critical thinking consists of being capable of analyzing information objectively and achieve a reasonable judgment. A person who thinks critically evaluates information, facts, visible phenomenon, and research discoveries, and then comes to a conclusion that helps him/her discern from useful and useless aspects to figure out a problem or decide on something.

the telephone is the answer