Final answer:
The block state a process is in becomes a 'sleep' state when it is swapped to disk. The process statuses change to 'waiting' while the process is in a non-active state and 'running' when it is eligible for CPU time.
Step-by-step explanation:
The student's question pertains to the concept of process states concerning a block of memory that is swapped to disk in the context of operating systems. The correct response to the question 'Block state becomes ___________ state when swapped to disk. Sent to Block/___________ and Ready/_____________' is B) Sleep; Waiting; Running. When a process is swapped to disk, the block state it was in becomes a sleep state. The statuses of processes in an operating system often include sleep/waiting, where a process is not currently executing but is waiting for some event to occur, and ready/running, where a process is ready to be executed on the processor or is currently executing.