Which of the following statements are applicable to 8237 DMA controller for working in the Master Mode:
(A) The signals Input Output Read and Input Output Write are kept in tri-state.
(B) The signals Memory Read and Memory Write are kept in tri-state.
(C) The signals Input Output Read, Input Output Write, Memory Read and Memory Write may all be used as per the data transfer requirement.
(D) The data transfer can be terminated by sending low End of Process (EOP) from outside, also.
Choose the correct answer from the options given below: