A particle of mass $m$ and charge $q$ moving with velocity $\overrightarrow{v}$ enters a region of uniform magnetic field of induction $\overrightarrow{B}$. Then:

its path in the region of the field is always circular.

distance travelled by the particle in time $T$ does not depend on the angle between $\overrightarrow{v}$ and $\overrightarrow{B}$

its path in the region of the field is a straight line if $\overrightarrow{v}\times \overrightarrow{B}=0$

its path in the region of the field is circular if $\overrightarrow{v}.\overrightarrow{B}=0$