$1 + \frac{a - bx}{1!} + \frac{(a - bx)^2}{2!} + \frac{(a - bx)^3}{3!} + \dots \infty = $

  • A
    $e^{a - bx}$
  • B
    $e^{a - bx} - 1$
  • C
    $1 + a \log_e(a - bx)$
  • D
    $e^{-bx}$

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