Simon's reasoning is correct. The product of a non-zero rational number and an irrational number is always irrational. However, if the rational number happens to be zero, then the product will be zero, which is rational.
Asia's statement only applies when the rational number is zero, not in general. If the rational number is not zero, the product will be irrational.
Jiovanni is incorrect since the product of an irrational number and a non-zero rational number is not rational.
Therefore, the correct response is:
None of them are correct.