Consider the following statements $(A)$ and $(B)$ and identify the correct answer.
$(A)$ $A$ Zener diode is connected in reverse bias when used as a voltage regulator.
$(B)$ The potential barrier of a $p-n$ junction typically lies between $0.1 \, V$ to $0.3 \, V$.

• A
  $(A)$ and $(B)$ both are correct.
• B
  $(A)$ and $(B)$ both are incorrect.
• C
  $(A)$ is correct and $(B)$ is incorrect.
• D
  $(A)$ is incorrect but $(B)$ is correct.