A system has three components and all three components need to be operational 24 hours;
Monday to Friday. During a particular week, failure on component 1 occurred as follows:
•Monday = 6 PM to 9 PM
•Tuesday = 8 AM to 10 AM
•Wednesday = No failure
•Thursday = 8 PM to 9 PM
•Friday = No failure
•Saturday = 5 AM to 8 AM
•Sunday = 6 PM to 9 PM
What is the mean time between failures of component 1?

A.
30 Hours

B.
37 Hours

C.
40 Hours

D.
44 Hours