Which pair of flats like SU are diagonally opposite to each other ........

Logical Reasoning & Mental Ability ( Patwari) Sitting Arrangement

Directions:Read the following information and answer Q. Nos. 1 and 2:
1) 6 flats on a floor in two rows facing North and South are allotted to P, Q, R, S, T and U
2) Q gets a North facing flat and is not next to S
3) S and U get diagonally opposite corner flats
4) R, next to U, gets a south facing flat and T gets North facing flat

Which pair of flats like SU, are diagonally opposite to each other?