What is the need of private constructor in C#?

Question

What is the need of private constructor in C#? I got it as a question for a C# test.

Answer 1

You can use it with inheritance in a case where the arguments to the constructor for the base class are of different types to those of the child classes constructor but you still need the functionality of the base class in the child class eg. protected methods.

Generally though this should be avoided wherever possible as this is a bad form of inheritance to be using.