$A$ body of mass $m$ is initially at rest. It is subjected to a uniform acceleration such that it acquires a velocity $v$ in time $T$. The instantaneous power supplied to the body as a function of time $t$ is . . . . . . .
- A$\frac{mv^2}{T^2}t$
- B$\frac{mv^2}{T^2}t^2$
- C$\frac{mv^2t}{2T^2}$
- D$\frac{mv^2t^2}{2T^2}$
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