Which of the following statements is/are correct with reference to the Piezoelectric crystals?

Which of the following statements is/are correct with reference to the Piezoelectric crystals?

A. Piezoelectric crystals are a class of materials that generate electricity when it undergoes a mechanical impact.

B. The piezoelectric molecules developed by the scientists called bipyrazole organic crystals recombine following mechanical fracture without any external intervention.

C. Both A & B

D. All of these

Explanation:

Indian Scientists have developed piezoelectric molecular crystals that repair their own mechanical damage without the need for any external intervention. Piezoelectric crystals are a class of materials that generate electricity when it undergoes a mechanical impact. The piezoelectric molecules developed by the scientists called bipyrazole organic crystals recombine following mechanical fracture without any external intervention, autonomously self-healing in milliseconds with crystallographic precision.