Which of the following is the correct ways to set a value 3.14 in a variable pi such that it cannot be modified?

    int x = 1; 
    float y = 1.1f;
    short z = 1;
    Console.WriteLine((float) x + y * z - (x += (short) y));

1. int i = 10; int j = 10;

2. int i, j;
   i = 10 : j = 10;

3. int i = 10, j = 10;

4. int i, j = 10;

5. int i = j = 10;

1. Integer
2. Array
3. Single
4. String
5. Long

public class MyContainer<T> where T: class, IComparable
{
    //Insert code here
}

1. Class MyContainer requires that it's type argument must implement IComparable interface.
2. Compiler will report an error for this block of code.
3. There are multiple constraints on type argument to MyContainer class.
4. Class MyContainer requires that its type argument must be a reference type and it must implement IComparable interface.

short s1 = 20;
short s2 = 400;
int a;
a = s1 * s2;

1. If the integer literal exceeds the range of byte, a compilation error will occur.
2. We cannot implicitly convert non-literal numeric types of larger storage size to byte.
3. Byte cannot be implicitly converted to float.
4. A char can be implicitly converted to only int data type.
5. We can cast the integral character codes.