Eight people are sitting in two parallel rows with 4 people each in such a way that there is equal distance between adjacent persons. In Row I - 1, 2, 3 and 4 are seated and all of them are facing south. In Row II - 6, 7, 8 and 9 are seated and all of them are facing north. 1 and 2 are not seated at the extreme ends and 1 sits to the immediate left of 2. 9 and 7 sit opposite 1 and 2 and 7 sits exactly opposite 1. 7 is not the immediate neighbour of 6. Who sits at the extreme right corner of Row II facing north?