What is Application area and complexity example?

Application area and complexity example

You have assembled a core team to develop the project management plan for the next generation of fatigue fight￾ing drugs. The science is complex, and the extended team of researchers, clinicians, and patients for trials exceeds 500 people. The content of your project management plan will be directed primarily by two factors. They are— 

a. Project complexity and the capability of resources 
b. Number of resources and project schedule 
c. Team member experience and budget 
d. Application area and complexity

Answer: d. Application area and complexity

The content of the project management plan is primarily influenced by the application area [in this case  drug development] and complexity of the project.  The size of the plan is typically commensurate with  the size and complexity of the project. [Planning]