23. Consider a project to develop a software application. The project starts with A1: Requirement Analysis, which takes 3 days. A2: Design follows Requirement Analysis and takes 10 days. Two modules need to be developed after the Design activity: A3: Module-1 Development takes 15 days. A4: Module-2 Development takes 20 days. A5: Documentation runs after the Design activity and takes 5 days. A6: Integration starts after both the Module Development activities A3, A4, and takes 10 days. A7: Document Update (5 days) and A8: Deployment (6 days) start after the integration activity. Clearly, Document Update is further dependent on the completion of Documentation. A9: User Training starts after the Document Update activity and takes 7 days. A10: Closing starts when Deployment and User Training are complete and takes 1 day. a. Create an activity network for the project. b. Develop a dependency matrix for the project. c. What are the earliest start time, earliest complete time, latest start time, lates complete time, and slack time for each activity?