The distance $(s)$ travelled by a particle in time $t$ is given by $s = 4t^2 + 2t + 3$. The velocity of the particle when $t = 3$ seconds is
- A$26 \text{ unit/sec}$
- B$20 \text{ unit/sec}$
- C$24 \text{ unit/sec}$
- D$30 \text{ unit/sec}$
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