Can a single producerTransport handle both video and audio ? Same question for consumerTransport.

Lets say there are “n” people in a room. Now if I want to produce “video” as well as “audio” from a client which will be consumed by “n-1” other people in the room.
So for the above scenario:
1.) Would I have to create a single producerTransport (which can handle both audio and video) or two producerTransports (one for audio and the other for video) ?
2.) Similarly, for a single person (other than the one who is producing) in the room, should I create a single consumerTranpsort (for both audio and video) or 2 consumerTransports ?
3.) The number of producers corresponding to a producerTransport should be 2 right (one for audio and the other for video) or a single producer can handle both medias ?
4.) Similarly, 2 consumers are required for both medias or a single consumer can handle both ?

This is clearly explained in the API documentation that of mediasoup server and mediasoup-client so I wonder if you have read the definition of Transport, Producer and Consumer for example here, because by just reading it your questions are answered: