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1. AHigher plasma phenelzine levels with an increased likelihood of side effects at standard doses
2. BReduced risk of hypertensive crisis with tyramine-containing foods eaten regularly
3. CFaster onset of antidepressant effect due to increased hepatic first-pass metabolism
4. DLower plasma phenelzine levels from faster acetylation via NAT2, requiring a higher starting dose to achieve the same therapeutic effect
5. ENo difference, as phenelzine is metabolised exclusively by CYP2D6 oxidation rather than any hepatic acetylation pathway