1) Right triangle PQR is to be constructed in xy-plane so that the right angle is at P and PR is parallel to X-axis. The x and y-coordinates of P, Q, R are to be integers that satisfy the inequalities -4<=x<=5 and 6<=y<=16. How many different triangles with these properties could be constructed?

A) 110
B) 1,100
C) 9,900
D) 10,000
E) 12,100