Amodem from which communications occur in discrete units, and in which the start of a unit is signaled by a start bit at the front, and a stop bit at the back signals the end of the unit.

These statements describe lists in presentation programs: a. bullets can be turned off and on. b. bullets cannot be turned off. c. bullet styles, colors, and sizes can be changed. d. lists don't have to use bullets or numbers. e. numbering styles, colors, and sizes can be changed. f. numbers can be turned off and on. g. numbers cannot be turned off. select all that apply