If for some \( \alpha \) and \( \beta \) in \( R \), the infer section of the following three planes \[ \begin{array}{l} x+4 y-2 z=1 \\ x+7 y-5 z=\beta \\ x+5 y+\alpha z=5 \end{array} \] is a line in \( R^{\prime} \), then \( \alpha+\beta \) is equal to \( \quad \)
(a) 0
(b) 10
(c) 2
(d) \( -10 \)
