The schedule data in weeks for a project is shown below. Using the Activity on Node $($AON$)$ approach $($and assuming that the Earliest Start Time for Activity $1$ is ZERO$),$ which of the following answers is correct:

Activity Duration Dependencies

$18$ N$/$A

$2121$

$391$

$4101$

$572$

$682,3$

$783$

$8103,4$

$9124$

$1095,6,7$

$1198,9$

$121210$

$131110$

$141211$

$15612,13,14$

The Total Float for Activity $6$ is $2$ weeks and for Activity $12$ is $2$ weeks

The Critical Path for the project is Activities $1,3,7,10,13,15$

The Total Float for Activity $6$ is $2$ weeks and for Activity $12$ is $2$ weeks

The Critical Path for the project is Activities $1,2,5,10,13,15$

The Total Float for Activity $6$ is $3$ weeks and for Activity $12$ is $3$ weeks

The Critical Path for the project is Activities $1,4,9,11,14,15$

The Total Float for Activity $6$ is $6$ weeks and for Activity $12$ is $3$ weeks

The Critical Path for the project is Activities $1,4,9,11,14,15$

The Total Float for Activity $6$ is $2$ weeks and for Activity $12$ is $2$ weeks

The Critical Path for the project is Activities $1,4,9,11,14,15$

The Total Float for Activity $6$ is $2$ weeks and for Activity $12$ is $2$ weeks

The Critical Path for the project is Activities $1,4,8,11,13,15$

The Total Float for Activity $6$ is $0$ weeks and for Activity $12$ is $0$ weeks

The Critical Path for the project is Activities $1,2,6,10,12,15$

The Total Float for Activity $6$ is $0$ weeks and for Activity $12$ is $0$ weeks

The Critical Path for the project is Activities $1,3,6,10,12,15$