A charged particle goes undeflected in a region containing uniform ...

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A charged particle goes undeflected in a region containing uniform electric and magnetic field. It is not possible at all ( \( \vec{V}= \) velocity of particle, \( \vec{E}= \) uniform electric field, \( \vec{B}= \) uniform magnetic field)
(A) \( \vec{E}\|\vec{B}, \vec{v}\| \vec{E} \)
(B) \( \vec{E} \) is not collinear to \( \vec{B} \)
(C) \( \vec{v} \| \vec{B} \) but \( \vec{E} \) is not collinear to \( \vec{B} \)
(D) \( \vec{E} \| \vec{B} \) but \( \vec{v} \) is not collinear to \( \vec{E} \)
\( \mathrm{P} \)
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