The displacement $x$ of a particle along a straight line at time $t$ is given by $x = {a_0} + {a_1}t + {a_2}{t^2}$. The acceleration of the particle is
A
${a_0}$
B
${a_1}$
C
$2{a_2}$
D
${a_2}$
The displacement $x$ of a particle along a straight line at time $t$ is given by $x = {a_0} + {a_1}t + {a_2}{t^2}$. The acceleration of the particle is