A point moves along the $$x$-$axis with its position, $$x$,$ at time $$t$$given by $()=332+21$x$($t$)=$t$33$t$2+2$t$1.$

Which of the following is the acceleration when$=2$t$=2?$

Select one:

a$.$

$11$

b$.$

$22$

c$.$

$66$

d$.$

$1$