Is coal or water more expensive to create? which is more expensive to use?

 would say coal cuz in the factories they have to make it black, ahrd and soo many other stuff.
But with water all they have to do is purify it and run some tests to make sure it okay to drink;)
Hope this helps!:)
@SamSamySamantha

Its water im pretty sure

A., d., and f i think