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 Etotal = 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

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