How can the graph of f(x) = + 15 be obtained from the graph of y = ? Question 14 options: A) By making a horizontal shift of 9 units to the right and a vertical shift of 15 units up B) By making a horizontal shift of 9 units to the left and a vertical shift of 15 units down C) By making a horizontal shift of 15 units to the right and a vertical shift of 9 units down D) By making a horizontal shift of 15 units to the left and a vertical shift of 9 units up