JEE Main 2021 Physics question

A loop of flexible wire of irregular shape carrying current is placed in an external magnetic field. Identify the effect of the field on the wire.

• (A)Loop assumes circular shape with its plane normal to the field.Correct
• (B)Loop assumes circular shape with its plane parallel to the field.
• (C)Wire gets stretched to become straight.
• (D)Shape of the loop remains unchanged.