What are the default access modifiers in C#?

Question

What is the default access modifier for classes, methods, members, constructors, delegates and interfaces?

Answer 1

top level class: internal
method: private
members (unless an interface or enum): private (including nested classes)
members (of interface or enum): public
constructor: private (note that if no constructor is explicitly defined, a public default constructor will be automatically defined)
delegate: internal
interface: internal
explicitly implemented interface member: public!