Find the derivative of the function 5x^(-1/2) + 4/x^(3/2). Which of the following options correctly represents the derivative? A) -5/(2√x) - 6/(x^(5/2)), B) -5/(2√x) + 6/(x^(5/2)), C) 5/(2√x) - 6/(x^(5/2)), D) 5/(2√x) + 6/(x^(5/2)).