Which project risk listed in the table below is most likely to occur?

If the number of critical paths in the project increases, but the duration of the project remains same, what is the impact on the project?

At a meeting, the project manager for an agile project indicates that the sprint goals were not met. The product owner leaves the meeting early. and the team discusses how the meeting went. Team members are confused as there were no defects for the new user stories and no new requirements were discussed.
What should the project manager do in the future to avoid this situation?

The process of identifying and documenting the specific actions to be performed to produce the project deliverables is known as:

You have been assigned to a project in which the objectives are to expand three miles of the north-to-south highway through your city by two lanes in each direction. You are in charge of the demolition phase of this project, and you report to the project manager in charge of this project. You have been hired on contract and will be released at the completion of the demolition phase. What type of organizational structure does this represent?