Which of the following statements are correct about JIT?

1. JIT compiler compiles instructions into machine code at run time.
2. The code compiler by the JIT compiler runs under CLR.
3. The instructions compiled by JIT compilers are written in native code.
4. The instructions compiled by JIT compilers are written in Intermediate Language (IL) code.
5. The method is JIT compiled even if it is not called

Console.WriteLine(13 / 2 + " " + 13 % 2); 

   int[][]intMyArr = new int[2][]; 
   intMyArr[0] = new int[4]{6, 1, 4, 3}; 
   intMyArr[1] = new int[3]{9, 2, 7};

1. Sample.Length = 20;

2. Sample m = new Sample(); 
   m.Length = 10;

3. Console.WriteLine(Sample.Length);

4. Sample m = new Sample(); 
   int len;
   len = m.Length;

5. Sample m = new Sample(); 
   m.Length = m.Length + 20;

1. try blocks cannot be nested.
2. In one function, there can be only one try block.
3. An exception must be caught in the same function in which it is thrown.
4. All values set up in the exception object are available in the catch block.
5. While throwing a user-defined exception multiple values can be set in the exception, object.