4.2: roman numeral converter
write a program that asks the user to enter a number within the range
of 1 through 10. use a switch statement to display the roman numeral
version of that number.
input validation: do not accept a number less than 1 or greater than 10.

Which of the statements below describe the guidelines for the use of text in presentation programs? a. do not use numbered lists. b. fonts should be appropriate for your audience. c. limit the number of fonts you use to three or four. d. only use bulleted lists for sales promotions. e. select font sizes that are appropriate for your delivery method. f. use font colors that work well with your background. select all that apply