The determinant $$\begin{vmatrix}\mathbf{1} & \mathbf{3} & \mathbf{7} \\ \mathbf{4} & \mathbf{9} & \mathbf{1} \\ \mathbf{2} & \mathbf{7} & \mathbf{6}\end{vmatrix}$$ is

A

45

B

49

C

51

D

53