If \[C=\frac{x-a}{a-b},\] find the value of x.

• A. \[\frac{bC-a}{C-1}\]
• B. \[\frac{C-a}{C-b}\]
• C. \[\frac{C+a}{C+b}\]
• D. \[\frac{1-C}{a-bC}\]