Project Management

I need at least 250-300 words and no copy nor plagraism work either....all orignal work....

"Initial Pricing Activities"  Please respond to the following:

• Determine the manner in which the project manager and project team uses the WBS to develop a reliable bottom-up estimate. Support your response with one (1) real-world example of such usage.

• Give an example of two (2) common risks that a project manager may encounter when planning a project. For each risk identified, provide a possible preventive action or response.