To respond to the competitive environment，the sales department launch product within a month. After the release of the prototype, the deliverable of the work came to a halt because the legal department needs a sigh-off to all products out of the new product by two months. What did the project manager fail to consider ?
A、Identifying the risks associated with product release.
B、 Understanding product quality is more important than the product deliverd.
C、 Identifying the stakeholders involved in product.
D、 Creating a comprehensive communication plan.