A charge particle moves in a circular path in possible electric and magnetic fields. Which of the following scenarios is possible?

Question

$\begin {array} {1 1} (a)\;E=0, B=0 & \quad (b)\;E=0, B \neq 0 \\ (c)\;E \neq 0, B=0 & \quad (d)\;E \neq 0, B \neq 0 \end {array}$