Which of these energy resources might replace dwindling petroleum supplies one day?

A) coal and natural gas,

B) tar sands and uranium,

C) oil shade and tar sands,

D) wind and coal?

I think the correct answer from the choices listed above is option D. The energy resources that might replace dwindling petroleum supplies one day are wind and coal. Both types of energy source are sustainable and they can be stored for long periods of time. Hope this answers the question.