Read the following statements about address space in microprocessors An address space is a set of all possible addresses which can be generated by a microprocessor.Each address in the address space allows a designer to provide at least one memory or I/O location in the system.Two types of address spaces are memory and I/O address space.Some micro processors have only one type of address space. Which of the above are correct?

• A. All
• B. 1, 2, 3 only
• C. 1, 2, 4 only
• D. 1, 3, 4 only