1. What is the output of the following code?

```csharp using System; public class Program { public static void Main(string[] args) { Console.WriteLine(5 + 3 * 2); } } ``` a) 16
b) 13
c) 11
d) 10

2. Which keyword is used to define a constant in C#?

a) let
b) const
c) readonly
d) static

3. How do you declare a method in C#?

a) function MyMethod() {}
b) void MyMethod() {}
c) def MyMethod() {}
d) function MyMethod {}

4. What is the output of the following code?

```csharp using System; public class Program { public static void Main(string[] args) { int x = 5; int y = 10; Console.WriteLine(x == y); } } ``` a) True
b) False
c) x
d) y

5. How do you create an array in C# with the elements 1, 2, and 3?

6. Explain the difference between ArrayList and List in C#.

7. Write a C# expression to check if the string "hello" contains the substring "ell".

8. What is the purpose of the async and await keywords in C#?