Question

If energy is released as a result of a nuclear reaction, would the mass of the products be affected?

No; the mass of the products would not be affected.

Yes; the mass of the products would decrease as a result of some of the mass being converted to energy.

Yes; the mass of the products would increase due to the addition of heat produced.

Yes; the mass of the products always increases in nuclear reactions.

Answer 1

Yes; the mass of the products would decrease as a result of some of the mass being converted to energy.
It's according on the equation E = m x c^2
the mass will decrease after some of it has been change into energy