An investment company wants to create a database system to manage its data. The company manage several projects. There are several investors. The investor can invest in several projects. A project can have several investors, so that a percentage of each investor is specified in each project. The project has a name, type, start date, duration and director. You are required to: Construct an ERD for the investment company database. The ERD must show the cardinality ratio. Identify the attributes you need to create the company database and show them using the ERD.