Correct option is C
GIVEN:
(I) All mobiles are squirrels.
(II) Some squirrels are clouds.
From the given statement following Venn diagram will be-

From the diagram, we can see that:
(A) Some clouds are mobiles. (False, There is no direct relationship given between mobiles and clouds. This does NOT follow.)
(B) Some clouds are squirrels. (True, This directly follows from the second statement: Some squirrels are clouds. This follows.)
(C) Mobiles are not clouds. (False, The statements do not mention that mobiles and clouds are mutually exclusive. It is not possible to deduce this. This does NOT follow.)
(D) Some squirrels are mobiles. (True, From the first statement, All mobiles are squirrels, it is evident that mobiles are a subset of squirrels. Therefore, it is true that some squirrels are mobiles (all mobiles are included under squirrels).
The conclusions that logically follow are: B. Some clouds are squirrels. D. Some squirrels are mobiles.