The triangle with side lengths 6,8 and 10 is right-angled, while the triangle with side lengths 6,8 and 9 is an acute triangle and the triangle with side lengths 6,8 and 11 is an obtuse triangle. An obtuse triangle with positive area has side lengths 10,17 and x. If x is an integer, what is the sum of all possible values of x?
Answer Choices
A. 161
B. 198
C. 63
D. 323
E. 224