Answer:
Rocks can form volcanoes.
Explanation:
Every scientific theory begins as a hypothesis. A scientific hypothesis is a suggested solution to an unexplained occurrence that does not fit with a currently accepted scientific theory. For the options given in the question, the hypothesis would be "Rocks can form volcanoes." In other words a hypothesis is an idea that has not yet been proven. If enough evidence accumulates to support a hypothesis, it goes to the next step - known as theory - in the scientific method and becomes accepted as a valid explanation of a phenomenon.
