need help explain with diagram please

Using the data and process map you created for Problem 2 (prior page), calculate how long (duration) it will take to complete the entire project. To do this, you will need to look at every possible sequence of tasks in the process and calculate which sequence takes the most time (in days). This will be called the "Critical Path". The following diagram has eight (8) blank rows, however, you may not need to use all of the rows. The first row provides an example sequence (or path)