B. He shares a titbit or two and it starts off a conversation.
C. He then asks his teenage grandchildren if they know who those people are.
D. He picks some names of politicians, rock stars or even criminals from his generation.
Correct Answer: (d) A, D, C, В
Solution:Sentence A will be the starting line as it introduces the main idea of the parajumble, i.e. the narrator met a gentleman who plays game with his grandchildren. And, Sentence D states that the gentleman picks names of some famous personalities from his generation. So, D will follow A. Further, Sentence C states that the gentleman asks his grandchildren about those personalities & Sentence B states that the conversation starts between the narrator and the gentleman. So, B will follow C. Going through the options, option 'd' has the correct sequence,