Which hardware feature must Computer4 must support?

Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.

Your network contains a single Active Directory domain named contoso.com. All computers are members of the domain and run the 64-bit version of Windows 10 Enterprise.
On a test computer named Computer_Test1, you pin several company-specific applications in a group named Contoso Apps, and then you export the Start menu layout to a file named Contoso.xml.
You install Client Hyper-V on a computer named Computer6.
You identify the following requirements:
• Install the Hyper-V feature on a computer named Computer1.
• Use virtual smart card authentication on a computer named Compute2.
• Enable Secure Boot on a computer named Computer3.
• Connect a computer named Computer2 to a projector by using Miracast.
• Ensure that a user named User1 can use keyboard shortcuts by pressing one key at a time.
• Ensure that you can share the clipboard between Computer6 and the virtual machines running on Computer6.
• Add the Contoso Apps group to the Start menu of a computer named Compute7.

Which hardware feature must Computer4 must support?
A. a Wi-Fi adapter
B. a Bluetooth adapter
C. an HDMI port
D. a MiniDisplayPort connector