How Does Elastic Deformation of Rocks Differ from Brittle or Plastic

Multiple Choice

How does elastic deformation of rocks differ from brittle or plastic deformation?

A) It only happens to rocks that can bounce .
B) It is reversible or recoverable and when the stress is removed, the rocks snap back to their original shape or position.
C) It can only occur once and never happens in cycles.
D) It only occurs are very fast or high strain rates.