using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var people = new List<Person>()

        {

            new Person()

            {

                FullName = "Jack Lee",

                Cars = new List<Car>()

                {

                    new Car()

                    {

                        Name = "BMW"

                    },

                    new Car()

                    {

                        Name = "Tesla"

                    }

                }

            },

            new Person

            {

                FullName = "Micheal doug",

                Cars = new List<Car>()

                {

                    new Car()

                    {

                        Name = "Ferrari"

                    }

                }

            }

        };

        var result = people.SelectMany(x => x.Cars)

            .Select(x => x.Name)

            .ToList();

        FiddleHelper.WriteTable(result);

    }

}

​

public class Person

{

    public string FullName { get; set; }

    public List<Car> Cars { get; set; }

}

​

public class Car

{

    public string Name { get; set; }

}