title: How to expose only one particular class from an assembly?
body: <p>Suppose assembly Assembly1.dll contains 3 classes: Class C1, C2, C3.</p>
  
  <p>I want to expose only class C1 to the outside world. Classes C2 and C3 will not be accessible. How to acheive this? </p>
  
  <p>Note: Making classes C2 and C3 private is not an option as this will make them unaccessible inside the assembly itself.</p>