The correct answer is static.
A static variable is a variable that is declared with the static keyword. It is a variable that is shared by all instances of a class. Static variables are initialized once, when the class is loaded, and they retain their value even when the class is unloaded.
A public variable is a variable that is declared with the public keyword. It is a variable that can be accessed from anywhere in the program.
A local variable is a variable that is declared inside a method or a block. It is a variable that is only accessible within the method or block in which it is declared.
A general variable is not a valid keyword in C#.
Here is an example of a static variable:
“`c#
public class MyClass
{
static int myStaticVariable = 10;
public void MyMethod()
{
Console.WriteLine(myStaticVariable); // Prints 10
}
}
“`
In this example, the variable myStaticVariable is declared as static. This means that it is shared by all instances of the MyClass class. The variable is initialized to the value 10 when the class is loaded. The MyMethod method can access the variable myStaticVariable because it is declared as public.
Here is an example of a public variable:
“`c#
public class MyClass
{
public int myPublicVariable = 10;
public void MyMethod()
{
Console.WriteLine(myPublicVariable); // Prints 10
}
}
“`
In this example, the variable myPublicVariable is declared as public. This means that it can be accessed from anywhere in the program. The MyMethod method can access the variable myPublicVariable because it is declared as public.
Here is an example of a local variable:
c#
public class MyClass
{
public void MyMethod()
{
int myLocalVariable = 10;
Console.WriteLine(myLocalVariable); // Prints 10
}
}
In this example, the variable myLocalVariable is declared as local. This means that it is only accessible within the MyMethod method. The MyMethod method can access the variable myLocalVariable because it is declared within the method.