Select the most appropriate option to fill in the blank.

While one cannot really say the pandemic is over yet, it is a sensible decision to now ________ to the older system.

revert

The correct answer is revert.

The word revert means to go back to something that was done or used before. In this sentence, the speaker is saying that it is a sensible decision to go back to the older system, even though the pandemic is not over yet.

The options sympathize, comprehend, and stick are not as appropriate because they do not have the same meaning as revert. For example, the option sympathize means to feel pity or sorrow for someone, but this is not the same as going back to something that was done or used before. The option comprehend means to understand something, but this is also not the same as going back to something that was done or used before. The option stick means to continue to do something, but this is also not the same as going back to something that was done or used before.