Given a simple project illustrated in the following table

Activity Immediate Predecessors Time $($weeks$)$

$1-2$

$213$

$324$

$422$

$542$

Assume that "Activity $1"$ actually finished at $3$ weeks, and "Activity $2"$ actually finished at $6$ weeks. Given the actual project progress, what is the ES $($earliest start time$)$ of "Activity $5"?$

Group of answer choices

$9$

$11$

$10$

$8$