Task: Question Answering
Input (English): Problem: the length of the side of a square is represented by x + 2 . the length of the side of an equilateral triangle is 2 x . if the square and the equilateral triangle have equal perimeter , then the value of x is ? 
Options: a ) 5 , b ) 7 , c ) 4 , d ) 8 , e ) 6
Output (English): c