Final answer:
The true statement is that the expressivity of a programming language does not have a direct correlation to the reliability of the programs written.
Instead, both the language's design and the programmers' skills and practices play essential roles in software reliability.
The Correct option is; C. The expressivity of a language is not related to the reliability of the programs written in the language.
Step-by-step explanation:
The statement that best describes the relationship between the expressivity of a programming language and the reliability of programs written in that language is not straightforward, as it depends on several factors. However, typically, expressivity and reliability have a complex relationship.
High expressivity in a language can allow for more concise and flexible code, but without proper discipline, it can lead to less reliable programs due to the increased potential for errors. On the other hand, some languages that are less expressive might enforce more rigid structures, which can, in turn, contribute to reliability.
Therefore, if we have to choose one, the closest statement would be C: The expressivity of a language is not related to the reliability of the programs written in the language.
It is essential to note that the reliability of programs also highly depends on the skill and practices of the programmers writing the code. Factors such as good documentation, thorough testing, and robust development practices are crucial for writing reliable software, regardless of the language's expressivity.
Hence, statement D is also valid in emphasizing the role of programmers. Therefore, while expressivity can influence how programmers approach problems, it is not the sole determinant of reliability.