Which practical measure can be adopted to control the reverse voltage at the occurrence of Zener breakdown?

Which practical measure can be adopted to control the reverse voltage at the occurrence of Zener breakdown?

a. Amount of Doping Level
b. Use of Voltage Regulator
c . Controlling the flow of maximum reverse current (Iz max)
d. No practical measure is possible due to probability of Zener diode destruction

Correct Answer : a. Amount of Doping Level

Explanation :

Quantity of doping either low or heavier helps in controlling reverse voltage during Zener breakdown. On the contrary ,there is no major stability is confined by regulating voltage or minimizing Iz (max).