Please help asap!! will give brainliest if right. A student listed the characteristics of chemical and nuclear reactions.

Chemical and Nuclear Reactions:

X - Changes the identity of the element

Y - Does not change the identity of the element

Which of these statements best explains the identity of Reaction X?

It is a nuclear reaction because the identity of elements changes when there is a change in the number of protons and neutrons.

It is a chemical reaction because the identity of elements change when there is a change in the mass of the atoms involved.

It is a chemical reaction because the identity of elements change when there is a change in the overall energy of the system.

It is a nuclear reaction because the identity of elements change when there is a change in the number of outermost electrons.