What is referred to as the meaning behind the code, which explains what the code does?

• A. Syntax
• B. Semantics
• C. Lexis
• D. Functionality

Answer: (B)

The correct choice refers to the concept of semantics, which is crucial in programming languages, including Python. Semantics pertains to the meaning of the code; it describes what actions will be performed and the effects of the code when executed. In other words, while syntax represents the structural rules that govern the form of the code (how the code is written), semantics is about what the code actually does when it runs.

Understanding semantics is essential for developers because it enables them to predict the behavior of their programs and ensure correctness. For instance, knowing that a loop iterates through a list or that a function returns a specific value reflects the semantic understanding of the code.

Other concepts mentioned do not encompass this meaning. Syntax is about proper structure, lexis generally pertains to the vocabulary of a language (not specific to programming), and functionality usually refers to what the code accomplishes in practical terms, but not directly to its meaning behind that action.