Determine the intervals on which the following function is concave up or concave down. Identify any inflection points.
$k\left(x\right)=\sqrt[3]{x+5}$

Concave up on $(-\infty ,-5)$

Concave down on $(-5,\infty )$

Inflection point at $x=-5$

Concave up on $(-5,\infty )$

Concave down on $(-\infty ,-5)$

Inflection point at $x=-5$

Concave up on $(-\infty ,-5)$

Concave down on $(-5,\infty )$

Inflection point at $x=5$

Concave up on $(-5,\infty )$

Concave down on $(-\infty ,-5)$

Inflection point at $x=5$