In this channel of communication, messages are carried by sound and light waves.
a. teleconference
b. face-to-face
c. voicemail
d. hard copy memos

What type of computer network ensures high security ?

What is a costume plot? why is it important to a film or theater production?

Visually impaired individuals generally rely on the for navigation. thus, designers need to ensure that mouse-specific inputs, such as pointing, clicking, and hovering, can be done without a mouse.