Data communications refers to the transmission of data between which of the following?

Data communications involves the transmission of data between computers and their connected devices, which includes peripherals such as printers, scanners, and storage devices. This encompasses a broader range of interactions than just communications between standalone computers or data centers.

When you consider communication in the context of a computer network, it's not just the computers talking to each other but also how they communicate with various peripherals that assist in data processing, input, and output. Thus, the emphasis on both computers and peripherals highlights the complete ecosystem of data exchange, making it the most comprehensive answer regarding the nature of data communications.

In contrast, options like focusing solely on communication servers, computers, or data centers do not fully encapsulate the entire spectrum of data transmission that includes the interactions with peripherals. Therefore, the correct choice reflects an inclusive understanding of how data communications operate within a networked environment.