Read the following article and answer the question by choosing from the options.

The hotel had a complimentary happy hour and while we were enjoying our drinks I looked up and spotted a couple from home ! What are the chances of that ? We were 8 hours away ! Too funny .

What made the poster think the situation was funny ?
Choose your answer from: (I) None of the above choices .; (II) The drinks were complimentary but there was no booze in it .; (III) Because they were 28 hours away and ran into someone they knew .; (IV) Because , as they say , it is a small world .;...A:
(IV)