human
Question: When Chemical X is added to a certain liquid, the chemical breaks into Substances Y and Z. It is not possible to break Substances Y and Z into simpler particles. Which statement is best supported by this evidence?

Choices:
A) Chemical X is an element.
B) Chemical X is soluble in water.
C) Substances Y and Z are elements.
D) Substances Y and Z are compounds.
gpt
The correct answer is 2: Substances Y and Z are elements..