1. Consider the following tables and their structures, which are part of a common database: CUSTOMER (Customer ID, CompanyName) SOFTWARE (SoftwareID, SoftwareName, Operating System, Description) LICENCE (LicenceID, Customer ID, SoftwareID, DateOfPurchase, LicenceType, Cost, Expiry Date) (a) Identify the keys (primary keys, alternate keys, foreign keys) from each of the tables. (b) Write a query to display all software for the operating system "Linux" from the table Software. (c) Write a to list all the licences where cost is more than 35000 Groun the output bu query

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