B. truthfully it's the only one that makes sense
Hi,
The force that acts on hydraulic machine is heavy therefore the content must be something that cannot be compressed by that kind of force, the gas can easily be compressed while a liquid is nearly impossible to.
I'd say you haven't given us enough information to answer that.
When we talk about "change of state", we're talking about changes
between solid, liquid, and gas.
Tell us what the state of the water is, and what the states of the
hydrogen and oxygen are after the split, and we'll be able to
summarize the changes of state that may be taking place.
