Match the following in the context of 8257 programmable DMA controller:(The most significanttwo bits of countregister)(Operations inmemorymapped I/O)a) 00i) Illegalb) 01ii) DMA write cyclec) 10iii) DMA verify cycled) 11iv) DMA read cycle Codes:

Match the following in the context of 8257 programmable DMA controller

1.	Match the following in the context of 8257 programmable DMA controller:(The most significanttwo bits of countregister)(Operations inmemorymapped I/O)a) 00i) Illegalb) 01ii) DMA write cyclec) 10iii) DMA verify cycled) 11iv) DMA read cycle Codes:
A.	a-i, b-iii, c-ii, d-iv
B.	a-iii, b-iv, c-ii, d-i
C.	a-iv, b-i, c-iii, d-ii
D.	a-ii, b-iv, c-i, d-iii
Answer» C. a-iv, b-i, c-iii, d-ii