The Hockey World Cup is organised by International Hockey Federation. It is held after the gap of every _____ years.
In each of the following questions a transparent sheet Fig. (X) with a pattern and a dotted line on it is given. If the sheet has to be folded along the dotted line, then which one of the alternative figures (A), (B), (C), (D) would represent the pattern on the folded sheet.
How is it (B)