Quiz: Soup Approximation

In Soup Servings, why can we return approximately 1.0 for large N values?

1. A.Large N causes integer overflow
2. B.The probability is exactly 1.0 for all N
3. C.The soup always runs out simultaneously for large N
4. D.The probability approaches 1.0 as N increases, and the problem accepts 10^-5 error