The point in time before a disruption or system outage to which business process data can be recovered after an outage is $\_\_\_\_.$

Question $4$ options:

a$)$

maximum tolerable downtime $($MTD$)$

b$)$

recovery time objective $($RTO$)$

c$)$

work recovery time $($WRT$)$

d$)$

recovery point objective $($RPO$)$