Two Long Straight Parallel Lines of Charge, #1 and #2

Multiple Choice

Two long straight parallel lines of charge, #1 and #2, carry positive charge per unit lengths of λ1 and λ2, respectively. λ1 > λ2. The locus of points where the electric field is zero in this case is

A) along a line between the lines closer to line #2 than line #1.
B) at a point halfway between the lines.
C) along line #1.
D) along a line between the lines closer to line #1 than line #2.
E) cannot be determined