How to search directory

I am trying to search for a file in a folder in a folder.

For example: I want to search for a file in the :A folder->B,C folder->B,C folder. I am trying to do {A PATH,B PATH} in the form of a list.

int count = Directory.GetFiles(“D:\RPA\Priyanka\Testing”, “ZIPfolder*”, SearchOption.AllDirectories).Length

if (count <=0) - Not exist
Else - Exist