Question

Where does a program written in C# begin execution?

Answer 1

Execution starts at main() because of a typographical
error in the documentation for early versions of the language.
The error wasn't detected until many thousands of copies of
the documentation had been printed, bound, and shipped to
eager users, so it was easier to change the software than
to go chasing after all those erroneous copies.

Before this error was perpetuated, C programs began
execution at mean().

Answer 2

In every language it starts from main() function.

Answer 3

Thanks both of you! I appreciate it