Question $10,3\mathrm{.}1\mathrm{.}27$

HW Score: $29\mathrm{.}639$

Part $1$ of $2$

Points: $0$ of $1$

Find a$)$ any critical values and b$)$ any relative extrema.

$t(x)=x^{3}14x-3$

a$)$ Select the correct choice below and, if necessary, fill in the answer box within your choice.

A$.$ The critical value$($s$)$ of the function is$/$are $$

$($Use a comma to separate answers as needed.$)$

B$.$ The function has no critical values.