A particle moves such that its position vector → r (t) = cos ^ i +...

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1. A$\overset{\to}{v}$ is perpendicular to $\overset{\to}{r}$ and $\overset{\to}{a}$ is directed away from the origin
2. B$\overset{\to}{v}$ and $\overset{\to}{a}$ both are perpendicular to $\overset{\to}{r}$
3. C$\overset{\to}{v}$ and $\overset{\to}{a}$ both are parallel to $\overset{\to}{r}$
4. D$\overset{\to}{v}$ is perpendicular to $\overset{\to}{r}$ and $\overset{\to}{a}$ is directed towards the origin