Final answer:
Most full websites use one or two programming languages.
Step-by-step explanation:
When it comes to the number of programming languages used in a full website with multiple features, the general standard is that most full websites use one or two languages. It is not necessary to use a single language across the entire website, and using more than four or five languages is uncommon and usually unnecessary. The choice of programming languages depends on the specific requirements of the website and the features it offers.
Learn more about Number of programming languages used in a full website