Team, I am currently preparing for PMI ACP and solving as many questions as possible on a daily basis. Sometimes, the answer suggested may not be appropriate so I thought of sharing them in this forum and get feedback from our members. 1. In a story, the product owner tells you to make a feature faster. You worked on it in the sprint and showed it in the demo. The product owner is unhappy and says "it is not as fast, as I expected." It means the story was not - Negotiable Implementable Testable Independent. I was thinking that answer should be Negotiable since the Developer did not discuss with PO to understand when he is really looking for the story to be delivered. But the right answer was stated as "Testable". Can somebody share your views on this.