In a multiple-choice question:
It's said that he's looking for a new job, one____ he can get more free time.
I think the best answer would be "from which," which is not an option. The answer given is "where," which I don't think makes much sense.
If it were "where," the sentence could be rewritten as "a new job where he can get more free time." I don't understand why "a job" could be the antecedent of "where," since the antecedent should be a location or "case," in other words, where being a location-relative pronoun.
PS: This question is all about why "where" can be used after an antecedent that's not a place.
(If there is anything that's not written as clear as it should be, please let me know)