Which of the following is not a popular programming language used to develop computer software?

Correct option is C

The correct answer is (c) Viper.
Explanation:
● C, Java, and Python are all widely used and popular programming languages.
● Viper is not a standard or widely recognized programming language for general software development in the same category as the others.
Information Booster:
● C: A powerful, low-level language often used for system programming.
● Java: A popular, object-oriented language known for its "write once, run anywhere" capability.
● Python: A high-level language known for its readability and use in data science and AI.
Additional Knowledge:
● Other popular languages include C++, JavaScript, and Swift.