Here's a problem to solve: A recent article in a science journal explains the relationship between convection currents and plate tectonics. As fluid within the mantle circulates, it causes crustal plates to move. Which is most likely causing the liquids inside Earth to circulate?

Among the 4 following options, which is the correct answer?

- A: energy transfers
 
- B: global warming
 
- C: tidal variations
 
- D: ocean currents
 