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A particle moves along a straight line. Its position can be modeled by $s\left( t \right) ={ t }^{ 3 }-2{ t }^{ 2 }+5t+1$ for $t\ge 0$.

What is the particle's acceleration at $t=3$?

A

$6$

B

$11$

C

$14$

D

$20$

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