Determine Which of the Following Is Not True for the Graph

Multiple Choice

Determine which of the following is not true for the graph of $f ( x ) = 2 x - 3 x ^ { \frac { 2 } { 3 } } + 4$

A) ƒ is continuous on $( - \infty , \infty )$
B) ƒ has a relative maximum at x = 0.
C) ƒ has a relative minimum at x = 1.
D) ƒ does not have a point of inflection at x = 0.
E) ƒ is concave downward on $( 0 , \infty )$