WYR know the exact day when you die, or the exact cause of your death?

Which curse are you picking and why? [NO LOOPHOLES]

• Option A: You know the EXACT DATE. You know the year, month, day, and second you will die, but you have no idea how it happens. You are completely immortal until that exact calendar date.
• Option B: You know the EXACT CAUSE. You know exactly what kills you (e.g., "car crash," "heart attack," or "choking on a steak"), but you have no idea when.