A Consumer Advocacy Group Rates the Quality of a Cellular $$\text { Describe a cellular service provider represented by } A ^ { c } \cup B ^ { c } \cup D ^ { c } \text {. }$$

Essay

A consumer advocacy group rates the quality of a cellular service provider using three
criteria.
A: Service is available at least 99% of the time.
B: Reception is clear at least 95% of the time.
D: Fewer than 5% of its customers have complaints about the quality of service. $$\text { Describe a cellular service provider represented by } A ^ { c } \cup B ^ { c } \cup D ^ { c } \text {. }$$