Define "syntax" in programming.

The definition of "syntax" in programming refers specifically to the set of rules that dictate how code must be written in order for it to be correctly interpreted by a programming language's compiler or interpreter. This involves specifying how statements and expressions should be structured, including the correct use of punctuation, keywords, and formatting. For example, in languages like Python, proper indentation is part of the syntax, while in Java, the use of semicolons to end statements is crucial.

Understanding syntax is essential because if the code does not follow these rules, it will lead to errors that prevent the program from running correctly. It's the foundation that enables the logical structure of a program to function as intended.

The other choices address related aspects of programming but do not accurately capture the definition of syntax. The logic behind the code pertains to the algorithms or flow of control, compiling refers to the process of transforming code into executable form, and variables are fundamental components of programming but do not define the structure or rules of the code itself.