The function g(x) =x^2 is transformed to obtain function h: h(x) = g(x) + 1.
Which statement describes how the graph of h is different from the graph of g?
OA.
The graph of his the graph of g horizontally shifted right 1 unit.
O B. The graph of his the graph of g vertically shifted up 1 unit.
Oc. The graph of h is the graph of g horizontally shifted left 1 unit.
OD.
The graph of h is the graph of g vertically shifted down 1 unit.