Each of the following questions consists of two sets of figures. Figures A, B, C and D constitute the Problem Set while figures (1), (2), (3) and (4) constitute the Answer Set. There is a definite relationship between figures (A) and (B). Establish a similar relationship between figures (C) and (D) by selecting a suitable figure from the Answer Set that would replace the question mark (?) in fig.(D).
The figure gets vertically inverted.