What is the main advantage of an unconditional policy commitment? OA. It provides a significant amount of certainty, which makes it easier for markets and households to make decisions about the future. OB. Not strictly maintaining the commitment could be viewed as reneging on a promise, and the central bank could lose significant credibility. OC. If conditions suddenly change where a change in the policy stance may be warranted, unconditional policy commitment allows for such flexibility. What is the main disadvantage of an unconditional policy commitment?