Givena trapezium ABCD with AB || CD , CD = 2AB and DB perpendicular to BC.Let E be the intersection of lines DA and CB, and F be the midpoint ofDC. Which among the following is not true?

1) ABFD is a rhombus
2) Triangle CDE is isosceles
3) If AF and BD meet at G, and GE and AB meet at H then the line DH bisects segment EB
4) At least two of the above
5) None of the above