What is an Interrupt Vector ?
(A) An Interrupt vector is a vector used for interrupts that controls the PCI bus of the computer.
(B) An Interrupt vector is a pointer to the memory where the start of the interrupt service routine is.
(C) An Interrupt vector is a mathematical term for representing the direction of data flow between the
      CPU and other devices.
(D) An Interrupt vector is an alternative expression to denote the interrupt capabilities of a computer
      system.