If a class called Point is present in namespace n1 as well as in namespace n2, then which of the following is the correct way to use the Point class?

• namespace CuriousTabConsoleApplication { class MyProgram { static void Main(string[] args) { import n1; Point x = new Point(); x.fun(); import n2; Point y = new Point(); y.fun(); } } }
• import n1; import n2; namespace CuriousTabConsoleApplication { class MyProgram { static void Main(string[] args) { n1.Point x = new n1.Point(); x.fun(); n2.Point y = new n2.Point(); y.fun(); } } }
• namespace CuriousTabConsoleApplication { class MyProgram { static void Main(string[] args) { using n1; Point x = new Point(); x.fun(); using n2; Point y = new Point(); y.fun(); } } }
• using n1; using n2; namespace CuriousTabConsoleApplication { class MyProgram { static void Main(string[] args) { n1.Point x = new n1.Point(); x.fun(); n2.Point y = new n2.Point(); y.fun(); } } }