Which programming languages are supported by IBM Watson V3 APIs?

The correct answer identifies Python, Java, and Node.js as the programming languages supported by IBM Watson V3 APIs, reflecting a strong alignment with modern software development practices. Python is widely recognized for its simplicity and readability, making it a popular choice among data scientists and machine learning practitioners. Java provides robust and platform-independent capabilities, often utilized in enterprise applications and backend systems. Node.js, powered by JavaScript, allows for efficient development of scalable server-side applications, catering to developers looking to create applications that interact seamlessly with IBM Watson services.

In contrast, the other choices either include languages that are not primarily associated with IBM Watson's offerings or that do not align with the typical use cases for machine learning and AI development in conjunction with the Watson APIs. HTML and CSS are markup and styling languages, not used for backend logic or API interactions. SQL pertains to database querying rather than direct interaction with Watson's features. Similarly, while languages like C++, Ruby, PHP, Swift, Go, and Rust may have their own strengths, they are not part of the primary suite supported for IBM Watson API integration, focusing instead on more deeply entrenched languages in the context of data analysis and enterprise solutions.