Earliest finish time (EF) is the earliest time by which a specific activity can be completed, calculated Question 37 options:___. a. by subtracting the activity’s estimated duration from the earliest finish time of the activity's predecessor: EF = EF predecessor - Estimated Duration.
b. by subtracting the activity’s estimated duration to the activity’s earliest start time: EF = ES - Estimated Duration.
c. by adding the activity’s estimated duration to the earliest start time of the activity's succeeding activity: EF = ES succeeding activity + Estimated Duration.
d. by adding the activity’s estimated duration to the activity’s earliest start time: EF = ES + Estimated Duration