Problem: milk is poured from a full rectangular container with dimensions 4 inches by 9 inches by 10 inches into a cylindrical container with a diameter of 6 inches . if the milk does not overflow , how many inches high will the milk reach ? 
Options: ['a ) 60 / π', 'b ) 24', 'c ) 40 / π', 'd ) 10', 'e ) 3 π']
c