Question: When comparing different-life alternatives by the B/C method, the alternatives should be compared over: (a) The life of the shorter-lived alternative (b) The life of

When comparing different-life alternatives by the B/C method, the alternatives should be compared over:

(a) The life of the shorter-lived alternative

(b) The life of the longer-lived alternative

(c) The LCM of their lives

(d) An infinite time period

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