It is required to add 56KB of memory to an 8088 microprocessor based system which has 20-bit address and 8-bit data buses in the following address ranges: 4 (8Kx8) RAM chips to decode from start address A0000H. 2 (4Kx8) RAM chip to decode from start addresses A8000H. 1 (16Kx8) RAM chip to decode from start addresses AA000H. What is the address space for the second 4Kx8 RAM? a. A8000 - A8FFF O b. A7000 - A FFF O c. A8000 - A9FFF d. A9000 - A9FFF Consider the following address decoding circuit. 0 AiG Ais A. 74LS138 A (L.SB) O, 04 Os Aiz pie Die G2A - 020 GI +5V O O, What is the maximum size (capacity) of memory chip that can be connected to the other outputs of the decoder? O a. 16 KB O b. 8 x 16 KB O c. 4x 16 KB O d. O KB