Find the derivative of the function g(x)=(1)/(8+\√(x)) using the definition of derivative. State the domain of the function using interval notation. Which of the following represents the derivative g^(')(x)? Options: a) (1)/(2(8+\√(x))²) b) (1)/(2(8-\√(x))²) c) (1)/(2(8+\√(x))) d) (1)/(2(8-\√(x)))