The correct answer is A. Niklaus Wirth.
Niklaus Wirth is a Swiss computer scientist who created the Pascal programming language in 1970. Pascal is a structured programming language that is still widely used today, especially in education. It is a relatively simple language that is easy to learn, and it is well-suited for teaching the fundamentals of programming.
Dijkstra is a Dutch computer scientist who is considered to be one of the pioneers of computer science. He is best known for his work on programming languages and algorithms. He did not create the Pascal programming language.
Donald Knuth is an American computer scientist who is considered to be one of the most influential computer scientists of all time. He is best known for his work on the TeX typesetting system and the Art of Computer Programming book series. He did not create the Pascal programming language.
Basic Pascal is a simplified version of the Pascal programming language. It was created by Kenneth Iverson in 1966. Basic Pascal is not as widely used as Pascal, but it is still used in some educational settings.
None of the above is not the correct answer.