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A charge particles q enters in a magneti...

A charge particles q enters in a magnetic field `vec(B)=y hat(i) + x hat (j)` with the velocity `vec(v)= x hat (i) y hat (j)` . Neglect any force other than magnetic force. Now answer the following question.
Which of the following is true for the direction of magnetic force ?

A

if `x gt y` then force works along (-z) direction

B

if `x lt y` then force works along (+z) direction

C

if `x gt y` then force works along (+z) direction

D

None of these

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