PARAGRAPH: 5 towers made by civilisation X were declared to be protected heritage building. Uniquely, four of them are placed geographically such that they are the vertices of a square. The fifth is placed at the point of intersection of the two diagonals of the square. Let the towers be named A, B, C, D and E. The following information is given to you about the five towers :
i. C, A and B are in a straight line (in no particular order) that runs from south-east to north-west.
ii. If one looks directly east from B, no tower is visible. This is not true for A and D.
iii. If one looks directly north from D, a tower is visible.