简述嗜酸粒细胞在Ⅰ型超敏反应中的反馈调节作用机制。

Managing risk and documenting them is very important in project planning process. You are in the process of defining key risks, including constraints and assumptions, and planned responses and contingencies. These details will be included in the （）.

A.project management plan

B.project baseline

C.risk response plan

D.risk baseline