Consider a few different types of interrupts: A. IO completion interrupt

B. Timer interrupt

C. Hardware interrupt (generally occurs when a device has some input, such as keyboard press, etc.)

(a) Which types of interrupts should be supported for a pure batch operating system?

(b) Which types of interrupts should be supported for a multi-programming batch operating system?

(c) Which types of interrupts should be supported for a multi-programming time sharing operating system?

(d) Which types of interrupts should be supported for an embedded computer that is used in your car to regulate the brake system. It takes speed and brake pedal pressing level as input and brake pressure as output. The system has a simple CPU and some memory, but no disk.

For the above questions, select the required interrupts by listing their labels A-D in alphabetical order with no separators or spaces (e.g., AC). If no interrupt needed, then answer "none".