An uniform electric field and an uniform magnetic field are acting along the same direction in a certain region. If an electron is projected along the direction of the fields with a certain velocity, then

Question

$\begin {array} {1 1} (a)\;\text{ its velocity will decrease}\\ (b)\;\text{its velocity will increase} \\ (c)\;\text{it will turn towards right of direction of motion} \\  (d)\;\text{ it will turn towards left of direction of motion} \end {array}$