Which type of connection allows data transfer between different components within a computer?

Bus lines are specialized communication pathways that enable the transfer of data between different components within a computer system. They facilitate the connection and communication of various hardware parts, such as the CPU, memory, and input/output devices. By allowing multiple components to share data simultaneously, bus lines play a crucial role in the overall performance and efficiency of the computer.

In contrast, data cables are typically used for external connections between devices rather than internal communication within a computer. Modems primarily serve to modulate and demodulate signals for internet connectivity and are not involved in internal data transfer within a computer. Wireless links, while useful for transmitting data between devices without physical connections, do not apply to the internal communication needs of a single computer system. Thus, bus lines are the most appropriate choice for facilitating data transfer among internal components.