Task: Question Answering
Input (English): Problem: the length of each side of an equilateral triangle having an area of 4 √ 3 cm 2 is ? 
Options: ['a ) 3 : 4', 'b ) 3 : 9', 'c ) 3 : 7', 'd ) 3 : 1', 'e ) 3 : 2']
Output (English): a