The latest start time $($LS$)$ is $\_\_\_\_\_\_\_\_\_\_.$

Answer

the latest an activity can be started and still finish the project on time, calculated by subtracting the activity$$s duration from its latest finish time

the earliest an activity can be started, as determined by the earliest finish time for all immediate predecessors

the difference between an activity$$s latest start time $($LS$)$ and earliest start time $($ES$)$

the latest an activity can be finished and still finish the project on time, as determined by the latest start time for all immediate successors