Problem: if the areas of the three adjacent faces of a cuboidal box are 120 cm ² , 72 cm ² and 60 cm ² respectively , then find the volume of the box . 
Options: ['a ) 120 m ³', 'b ) 400 m ³', 'c ) 660 m ³', 'd ) 720 cm m ³', 'e ) none']
d