Which statement about a router on a stick is true?

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Question:
Which statement about a router on a stick is true?

Its date plane router traffic for a single VI AN over two or more switches.
It uses multiple subinterfaces of a single interface to encapsulate traffic for different VLANs on the same subnet
It requires the native VLAN to be disabled.
It uses multiple subinterfaces of a single interface to encapsulate traffic for different VLANs.

Explanation: https://www.freeccnaworkbook.com/workbooks/ccna/configuring-inter-vlan-routing-router-on-a-stick