What is The most correct answer that you can give them ? See below for details and options.

You are the program manager for a large multimillion dollar program managing projects, each with a project manager. Because of the varying complexity of the projects, there are at least three different project life cycle types are being used across the projects. Some of the project managers are discussing whether the project management life cycle needs to change to adjust to different project life cycles. 

a. The project management life cycle is applied to every project phase

b. The project management life cycle may change depending on the specific project life cycle being employed

c. There is no difference between the project management life cycle and the project life cycle

d. The project management life cycle changes for each project