What is the value of the following expression?
$$2^{2}(\frac{x^{a}}{x^{b}})^{(a+b)}\times3^{2}(\frac{x^{b}}{x^{c}})^{(b+c)}\times6^{-2}(\frac{x^{c}}{x^{a}})^{(a+c)}$$

A

1

B

0

C

4

D

9