Task: Question Answering
Input (English): Problem: the height of a triangle is decreased by 5 % and its base increased by 10 % . its area will 
Options: ['a ) decrease by 12.5 %', 'b ) increase by 12.5 %', 'c ) increase by 4.5 %', 'd ) increase by 25 %', 'e ) none of these']
Output (English): c