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The answer should be “A”.

Reason behind this is the question tells us that to make a cube fir inside a cylinder the volume of the cylinder should be greater than the volume of cube.

Statement 1 tells that the height and diameter. The diameter is the only thing here to take a call as we need to check that whether the bottom of the cube aka the square can fit inside or pass inside the circle of the cylinder. Divide the square into half as isosceles and get 3 root 2 as one diameter of square whereas we have the diameter of circle aka cylinder as 4 and hence square is bigger so its should be a NO.

Statement 2 tells that if the volume of cylinder increased by 50% will fit 3 cubes that means before increase it already had a space of 2 cubes but one statement can differ with the another one so if this is YES and the statement 1 should be Yes to but isn’t. Statement 1 provides slight more info as we don’t that how much the volume will increase after in 50% increase that it may fit 3 cubes.

I got the answer from A so didn’t solved with C however if A goes wrong then only it should be C.

Hence, as of now it should be “A”.