Motion of a particle is given by equation $S=({3t^3}+{7t^2}+14 t+8)m$ The value of acceleration of the particle at t = 1 sec. is :

Question

( A ) $32m/s^2$
( B ) $10m/s^2$
( C ) $23m/s^2$
( D ) $16 m/s^2$