Mother of Pearl Cloud is known as…

✅Explanation: Mother of Pearl clouds, also known as nacreous clouds, are a type of cirrus cloud that forms at high altitudes (stratosphere) and exhibit iridescent colors due to the diffraction of sunlight by ice crystals. Cirrus clouds typically appear delicate and wispy with white strands. Cirrus are usually formed when warm, dry air rises, causing water vapor deposition onto rocky or metallic dust particles at high altitudes. 

📌 Other Options Explanations:
-(A) Cumulus Cloud: Cumulus clouds are puffy, white clouds that typically form in the lower atmosphere (troposphere).
-(B) Cumulonimbus Cloud: Cumulonimbus clouds are large, towering clouds associated with thunderstorms and heavy rain.
-(C) Stratus Cloud: Stratus clouds are flat, gray clouds that often cover the entire sky and can produce drizzle or light rain.