Task: Question Answering
Input (English): Problem: a rectangular courtyard 3.78 m lang and 5.25 m broad is to be paved exactly with square tiles , all of the same size . the minimum number of such tiles is : 
Options: ['a ) 425', 'b ) 430', 'c ) 440', 'd ) 450', 'e ) 460']
Output (English): d