The total pressure on the top of a closed cylindrical vessel of radius (r) completely filled up withliquid of specific weight (w) and rotating at (ω) rad/s about its vertical axis, is

• A. π w ω² r²/4g
• B. π w ω² r³/4g
• C. π w ω² r⁴/4g
• D. π w ω² r²/2g