If an in-person class is offered in person or remotely,
since the professor or instructor delivers the lectures in person, both in-person and remote lectures cannot be offered on the same day unless the dates are different.
Therefore, if a course is offered in-person, it cannot be changed to remote,
and if it is offered remotely, it cannot be changed to in-person.
However, you can change an in-person class to a substitute, allowing you to take a substitute exam or complete a substitute assignment.