Used to formally introduce one possible solution among potentially several others.
“One option would be to rent extra chairs from a nearby hall.”
“One option would be to email the clients directly instead of calling them.”
This phrasing often appears when a speaker lists more than one possible solution, so expect to hear 'another option would be' or something similar soon after. Track each option and its pros and cons, since questions on this section sometimes ask you to distinguish between two or three options presented this way.
Synonyms: one possibility is, an alternative would be, one solution could be