If an electron is going in the direction of magnetic field \[\overrightarrow{B}\] with the velocity of \[\overrightarrow{v\,}\] then the force on electron is [RPMT 1999]

• A.            Zero                                         
• B.            \[e\,(\overrightarrow{v\,}\cdot \overrightarrow{B})\]
• C.            \[e\,(\overrightarrow{v\,}\times \overrightarrow{B})\]    
• D.            None of these