Some value of $\displaystyle {f{{\left({x}\right)}}}$ and $\displaystyle {f}'{\left({x}\right)}$ are given in the table. If no value is given, then you should assume that the value exists but is unknown.

$\displaystyle {x}$	$\displaystyle {4}$	$\displaystyle {5}$	$\displaystyle {6}$
$\displaystyle {f{{\left({x}\right)}}}$		$\displaystyle {1}$
$\displaystyle {f}'{\left({x}\right)}$	$\displaystyle -{1}$	$\displaystyle \emptyset$	$\displaystyle {2}$

Which of the following might be a graph of $\displaystyle {y}={f{{\left({x}\right)}}}$?