D) About one-fourth of the cable-television customers are not satisfied.
Step-by-step explanation:
First you find out how many <u>cable-television customers are not satisfied</u>, which is 285. The you find out the <u>total number of cable-television users</u> in the sample, which is 1,109. Then you divide the number of unsatisfied by the total, <u>285/1109</u>, to get .2569 or 25%