Task: Question Answering
Input (English): Problem: nd the area of trapezium whose parallel sides are 20 cm and 18 cm long , and the distance between them is 15 cm ? 
Options: ['a ) 766 cm 2', 'b ) 535 cm 2', 'c ) 285 cm 2', 'd ) 324 cm 2', 'e ) 235 cm 2']
Output (English): c