Confusion regarding projects

From: Ameya Chawla (ameya.chawla.ml_at_[hidden])
Date: 2021-03-17 14:56:57

Respected sir/madam

I want to contribute to Boost C++ libraries , but i am confused that do I
have to contribute to  all the 3 projects mentioned or I can contribute to
any one of them .and competency test is for project 2 only or for all 3
projects ?

https://github.com/CGAL/cgal/wiki/Project-Ideas

Thank you