Which type of clouds is the found in the highest altitude of the Earth‚Äö√Ñ√∂‚àö√ë‚àö¬•s atmosphere?$

Which type of clouds is the found in the highest altitude of the Earth

1.	Which type of clouds is the found in the highest altitude of the Earth‚Äö√Ñ√∂‚àö√ë‚àö¬•s atmosphere?$
A.	Noctilucent
B.	Cirrostratus
C.	Stratus
D.	Cirrus
Answer» B. Cirrostratus