Generally, you should use one slide for every _____ minutes of a ...

[abern]

Generally, you should use one slide for every _____ minutes of a presentation.
 a. one or two c. three or four
  b. two or three d. four or five

Question 2

A long-distance communication option that provides only two-way audio and permits many people to talk at once is
 a. faxing.
  b. voice mail.
  c. teleconferencing.
  d. videoconferencing.

[aadams68]

Answer to Question 1

B

Answer to Question 2

C

[abern]

Thanks for the timely response, appreciate it

[apple]

Gracias!