Correct option is C
Statements:
Some stones are cubes.
No cube is a glass.
All bats are cubes.

Conclusions:
I. Some stones being bats is a possibility - True - there is no direct relation is given between them so in possibility it is true
II. No bat is a glass - True - al bat is restricted with cubes that must not be glass
III. All cubes are bats - False - whole area of cubes are not inside of bats
IV. No stone is a glass.- False - there is no direct relation is given between them , this is definite conclusion - we cant say defiantly
Only Conclusions I and II follow