Review the clue. The root of the word vacuum is vacuus, or "empty". Based on this clue, which phrase is the best meaning of the word vacuum?

a space without any matter

total destruction

living away from others

unlimited knowledge

Which of the following statements is most accurate? a. effective communication skills are not as important as technical skills. b. good communication skills can you in the classroom, on the job, and in your personal life. c. communicating effectively is not related to job success. d. learning to communicate effectively cannot be taught because communication skills are inborn.