Use C#

1. Develop a structure type called Car with attributes model, color, year, price. Test the enum type.

2. Develop a structure type called Computer with attributes brand, price, cpu, memory. Test the enum type.

3. Develop a C# program that reads seven strings for the names of the seven-layer OSI networking model, combine the seven strings to a long string, compare with the correct answer, and provide suitable feedback to the user.

Please send me the screenshot of the final output of each part too.

Thanks a million.