OIS is lower than LIBOR, and if discounting based on LIBOR is 0 (fix leg at par) then based on OIS must be >0..I selected 100.95 = (6/1.05 + 106/1.055^2)..I may be wrongI guessed on this one and went with the one selection below 100 (I recall something like 98.xx) as I thought the question was asking for the side that was required to make net payment therefore NPV below 100! Again I could have misinterpreted the question all along