Answer 1

You mean probably: c++, c# and c?

C is the parent langage, who separate in three branches when OOP ( Oriented Object Programmation ) concept appears: C continued its journey in functionnal programmation, while was born C++ and C# as adaptation for C as OOP ( in fact, at least two others also emerge: Objective C, and Swift ), each with different choices of implementation and syntax, but remaining close and less or more compatible with the ancestor C...