The function g is continuous on the closed interval [L4] with g(1)=5 and g(4)=8. Ofthe following conditions, which would guarantee that there is a number c in the open interval (1,4) where g '(C) =1 '? (E! (A) The graph of g has at least one horizontal tangent in the open interval (1,4) (B) 3 is increasing on the closed interval [1,4] (G) g is ditterentiable on the open interval (1.4) (D) g has a maximum value on the closed interval [1.4]