প্রশ্ন ও সমাধান

It is a bright sunny day and the last Cricket match of Micromax GDI series between Bangladesh had New Zealand is about to begin. All the people of Bangladesh are very excited and eagerly waiting to watch the match. On that day, witn no exception, three sophomores named Rakshan, Salsabil, Tarnnum with two seniors named Udvash & Vanu and four freshmen named Wajhat, Xanbi, Yasrib, Zeehan are going to enjoy the match at Mirpur Stadium, Though they have nine tickets for the game but the seats against those tickets are scattered in three different arenas of the gallery. Each arena has a group of three adjacent seats. In this circumstance, they have to divide themselves into three groups but that is not so easy as they have certain reservations that must be followed while forming the groups. A funny constraint is that no sophomores can be together in any group and so are any seniors. Not only that, Wajhat in his very first day at university had an unfortunate mishap with Rakshan and thereupon he is not in a position to be in the same group of Rakshan. Last but not the least, Xanbi, being a bit obstinate, constraints herself to be in a group with Salsabil or Udvash or both.Any of the following pairs of people could be in Xanbi's group except