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 $f ( x ) = x ^ { 4 } - 2 x ^ { 3 } + x$

A) ƒ is continuous on $( - \infty , \infty )$ .
B) ƒ has a relative maximum at $x = \frac { 1 } { 2 }$
C) ƒ has relative minima at x = ±1.
D) ƒ has points of inflection at x = 0,1.
E) ƒ is concave downward on (0,1) .