2 correct statements in a row. Wonderful.
A guy with Kendrys' MLB service time cannot be optioned to the minors without his consent. He could be Designated for Assignment, in which case he is removed from the 40 man roster, and the team would have 10 days to try and trade him. If they can't trade him, he would be released, and then another team could claim him, and pay him the pro-rated league minimum salary for the rest if his contract, while the Jays paid the remainder of what he is owed.
He could also just be traded without being DFA, but there's no team that would actually give anything up for him at this point AND take on that salary.