A cylindrical vessel of diameter $8\;cm$ is partly filled with water . 600 lead balls are dropped into it. The rise in water level is $0.8 \;cm$ . The diameter of each ball is

Question

$(A) \; 20 \sqrt[3]{2} \\(B)\;0.02 \sqrt[3]{2} \\(C)\;2 \sqrt[3]{2} \\(D)\;0.2 \sqrt[3]{2} $