Task: Question Answering
Input (English): Problem: 10 litres of water are poured into an aquarium of dimensions 50 cm length , 20 cm breadth , and 40 cm height . how high ( in cm ) will the water rise ? ( 1 litre = 1000 cm ³ ) 
Options: a ) 6 , b ) 8 , c ) 10 , d ) 20 , e ) 40
Output (English): c