The correct answers are "it is a change of one or more substances into new substances" and "it is a change that changes physical properties of a substance but it doesn't change its composition."
These are the correct answers because they describe the true definition of a chemical change, which is a change that either changes the substance into completely new substances, or a change where the properties of a substance change, but the composition does not.
The other two answers are incorrect because they aren't the full definition of a chemical change.