Which of the following programming languages is primarily interpreted?

The choice of Python as the primarily interpreted programming language is accurate due to its design and execution model. Python is most commonly executed in an interpreted environment where the code is run line-by-line by the Python interpreter. This provides flexibility, ease of debugging, and rapid development cycles, which are some of the hallmarks of Python as a language.

In contrast, other languages mentioned, such as C#, Java, and C++, typically involve a compilation step where the code is transformed into machine code or bytecode before execution. In Java, for instance, the code is compiled into bytecode that runs on the Java Virtual Machine (JVM), which is a form of interpretation but still distinguishes it from the more direct interpretation of Python. C# also compiles to Intermediate Language and runs on the Common Language Runtime (CLR), while C++ is usually compiled directly to machine code. This fundamental difference in execution models underpins why Python stands out as primarily interpreted.