An energy auditor is comparing two lighting retrofit options. Option A costs $12,000 with annual savings of $3,600, and Option B costs $18,000 with annual savings of $5,000. Using simple payback period, which option pays back faster?
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A
Option A at 3.33 years
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B
Option B at 3.60 years
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C
Both have the same payback period
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D
Neither option is economically viable