The height of a radio wave is called its _______________

Athletic talent:

a. is in short supply b. demands higher salaries and bonuses per year c. typically finds a team to pay a high salary in exchange for talent d. all of the above

When using visual aids in a speech, you should

A. display visual aids only while discussing them. B. avoid passing visual aids among the audience. C. maintain eye contact with listeners when showing visual aids. D. All the answers are correct. E. both display visual aids only while discussing them and avoid passing visual aids among the audience.