Exam 1Y0-402 topic 1 question 21 discussion

Scenario: After a recent security assessment, a Citrix Architect recommends blocking unnecessary peripheral types by disabling the associated HDX channels.
Currently, the environment is intended to support the peripheral types listed in the Exhibit.
Click the Exhibit button to view the supported peripheral types.

Which four HDX virtual channels should the architect disable, based on the peripherals required in the environment? (Choose four.)