Here's a problem to solve: Some scientists theorize plate motion could alter the level of water in Earth's seas. How would the nature of plate motion limit the possible changes in sea level?

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

- A: by making only small changes
 
- B: by changing only a few specific ocean basins
 
- C: by causing changes to occur at very slow rates
 
- D: by causing paired changes with equal and opposite effects
 