A changed partice would continue to move with a constant velocity in a region where in ,

Question

$\begin{array}{1 1} \overrightarrow{E} =0 , \overrightarrow{B} \neq 0 \\ \overrightarrow{E} \neq 0, \overrightarrow{B} \neq 0 \\ \overrightarrow{E}=0, \overrightarrow{B}=0 \\ All\;the\;above \end{array}$