The total completion time of a project is expected to be $22$ days. Task A is planned to take six days. Task B is planned to take five days. Task C is planned to take seven days. The tasks have a serial or sequential relationship. Task A takes eight days to be completed instead of six days. How much slack does the project have now that Task A is finished?

Question $4$ options:

Positive $14$ days slack.

Positive $2$ days slack.

Positive $4$ days slack.

Negative $4$ days slack.