Part $($a$)$

True or False: One difference between DTMC and CTMC is that inspection in DTMC is done at the same regular time intervals, whereas inspection in CTMC is done every $4$ time units. Write a short note to explain your answer.

Part $($b$)$

True or False: An st$-$CTMC network has no loops, but an r$-$CTMC network may have a loop. Write a short note to explain your answer.

Part $($c$)$

Draw a $5-$node network that can be interpreted as a $5-$state st$-$CTMC$,$ and can also be interpreted as a $5-$state DTMC$.$