Let's consider a construction project to build a new office building. The project involves several tasks, each with different durations and dependencies:Task A: Designing the architectural plans $(3$ weeks$)$Task B: Obtaining necessary permits $(2$ weeks, dependent on Task A$)$Task C: Excavating the site $(4$ weeks, dependent on Task B$)$Task D: Pouring the foundation $(3$ weeks, dependent on Task C$)$Task E: Framing the structure $(5$ weeks, dependent on Task D$)$Task F: Installing utilities $(2$ weeks, dependent on Task E$)$Task G: Interior finishing $(4$ weeks, dependent on Task E$)$Task H: Landscaping $(2$ weeks, dependent on Task G$)$Using either paper and pen or a computer. Draw the project layout along and answer the following questions$\mathrm{.}1)$ Calculate the earliest start and finish times for each task?$2)$ Calculate the latest start and finish times for each task?$3)$ Calculate the slack for each task?$4)$ Identify the critical path?