Let $$A = \begin{bmatrix} 1 & 0 & 0 \\ 3 & 1 & 0 \\ 9 & 3 & 1 \end{bmatrix}$$ and $$B = [b_{ij}], 1 \le i, j \le 3$$. If $$B = A^{99} - I$$, then the value of $$\dfrac{b_{31} - b_{21}}{b_{32}}$$ is :

A

99

B

199

C

149

D

159