Prime role of a project manager is: a) crisis management b) project closure c) team management d) risk mitigation f) all of these

All of these. But not only these either. A project manager is responsible for the success of the whole project which includes setting up objectives, managing the team, managing risks, sorting out issues, overseeing the development and testing and delivering a final working product.

All of these and do not forget :  Planning , Cost Control and Quality Control .

A project manager is responsible for the success of the whole project .

All of these. I see that they will carry different priorities depending on the state of the project.

all of these. As a project manager you must have all the coverage of a project management processes and its knowledge areas (all of the above), you must have the wholistic approach of the Project since you are leading the Team towards business objectives - and to attain you must have the capabilities, as your role, to manage all of these.

A project manager is a creative solutions magician.  The crisis is always created by others, project closure requires amazing skills to solve the impossible.

Project managers are required to fix the unfixable before it breaks.

All of these..

All of these is necessary but not enough!

He also should have all the skills and expetise needed for a project manager to succeed.

Prime Role of a Project Manager is Project management that includes all above and many more.

PrIme role of a Project Manager is of a communicator at all levels besides all of the above.

Remember that a Project Manager's maximum time and effort should be spent in effectively and timely communication with all stakeholders.

There's no prime role or second role , the project manager is responsible for all  these , including ;

Planning for good steps to growing the project1 

Create new ways to facilitates the work of his staff2

3 Seeking for the satisfaction of customers in all ways