Halfway to the Product Goal, evidence shows the goal will not produce the outcome intended. What should the Product Owner do?

• AComplete it, since abandoning a Product Goal midway wastes the work already done.
• BComplete it and set a corrective Product Goal immediately afterwards.
• CAbandon it and set a new one, since a Product Goal is a commitment to an objective rather than to finishing a body of work.
• DKeep the goal and change the items beneath it until the outcome appears.