Questions about Project Management Process Groups (from Rita's book)

 Hi, I just did Project Management Scramble in chapter 3 of the book and did a few questions wrong. Would someone help to explain why they are wrong? Many thanks!

1. Action: Calculate estimate to complete

Which process group: Should be Monitoring & Controlling, but I chose Planning

 

2.  Action: Increase effectiveness of processes

Which process group: Should be Executing, but I chose Monitoring & Controlling

 

3. Action: Reanalyze existing risks

Which process group: Should be Monitoring & Controlling, but I chose Planning

 1. Since Planning is done before M&C, If you know what is part of Planning it will help knowing what is next, and is not part of M&C.

2. The definition of the terms Excecuting and M&C should help. Check the process chart, glossary and ricardo vargas's video.

3. The word reanalyze here gives it away that it is after the Planning time.