The graph below shows two polynomial functions, f(x) and g(x):

graph of g of x equals the square of x. graph of f of x equals the cube of x.

which of the following statements is true about the graph above?

g(x) is an odd degree polynomial with a positive leading coefficient.
f(x) is an odd degree polynomial with a positive leading coefficient.
g(x) is an even degree polynomial with a negative leading coefficient.
f(x) is an even degree polynomial with a negative leading coefficient.