P , Q , R , S and T are five points such that R is somewhere between point P and Q on a straight line. The distance between P and Q is 8 units. The point S is 6 units to the north of R and point T is 6 units to the east of S and north of point Q. Calculate the shortest distance between point P and T?
[A] 14
10
[C] 11
[D] 12
[E] 13
[A] 14
10
[C] 11
[D] 12
[E] 13
