From symmetry the vector sum of the fields at the mid-point = 0

Therefore A is true

Bis also true as shown in the 2nd figure

C is also true as shown in the third figure

The mid-point is the only point on the connecting line where E_{total} = 0

Therefore D is also true

There is only one point on the connecting line where E (and the force) is 0

Therefore E is false

Answer is E