Need help to choose 3 most easiest MCSA

I have been accepted for IT support job in overseas with condition to pass 3 MCSA within 6 months probation period, in case if I cannot pass then they will not continue to hire me.
For anyone who has acquired MCSA, could you please recommend me the most easiest MCSA from the following Microsoft category.


https://www.microsoft.com/en-us/learning/certification-overview.aspx#/


I'm still waiting an answer from the hiring manager if I should pass one category for example MCSA Windows Server 2012 which consist of 3 exams or I need to pass 3 different MCSA test from completely different category.


Thanks in advance.