Given the Diagram Below That Represents a Cell Phone Circuit

Multiple Choice

Given the diagram below that represents a cell phone circuit, determine the cell phone system reliability for this part of the total operating system if the individual component reliabilities are: A = 0.92, B = 0.90, C = 0.88, and D = 0.88.

A) More than 0.8000 but less than or equal to 0.8500
B) More than 0.8500 but less than or equal to 0.9000
C) More than 0.9000 but less than or equal to 0.9500
D) More than 0.9500