What common feature do Thunderbolt and USB-C connectors share?

Thunderbolt and USB-C connectors share the common feature of using the same physical connector design. This means that both Thunderbolt and USB-C ports can make use of the same type of cable and plug, allowing for interoperability between various devices and systems that utilize these connections.

This shared physical design is significant because it enables versatility in connecting devices that may utilize different protocols. For instance, a USB-C port can support standard USB data transfer, USB Power Delivery for charging, and DisplayPort for video output, while a Thunderbolt port can do all of that and also support high-speed data transfer for various peripherals and displays.

The other options do not accurately describe features of Thunderbolt or USB-C connectors. For example, both connectors are not limited to transmitting only audio or video signals; they can handle a variety of data types. Additionally, while Thunderbolt originated with a significant contribution from Apple, it is not proprietary to Apple alone, as it has been adopted across various platforms.