One advantage of a PC in industrial control is that it:

1.	One advantage of a PC in industrial control is that it:
A.	has a reliable long life compared to relay logic
B.	is very difficult for the inexperienced programmer to understand
C.	is unreliable because there are no moving parts
D.	All of the above
E.	None of the above
Answer» B. is very difficult for the inexperienced programmer to understand

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One advantage of a PC in industrial control is that it:

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