A project to construct a building office has eight (8) months project duration. Table Q1 shows the related monitoring data of the project progress where all figures are cumulative. a. Based on the given information, you are required to calculate the followings at the end of month 4. i. Cost variance ii. Schedule variance iii. Cost performance index iv. Schedule performance index v. Time performance index b. In order to communicate with related project stakeholders, you are also required to plot the graph and prepare a brief summary of the project progress based on the results obtained in (a)