I mostly work with c# and MS Visual Studio environment where I would just open .SLN file. But there is no .SLN file in this particular Java project.

So I am trying to open this Java Solution in Intellij IDEA. I am using menu "File > Open Project". The dialog window pops up prompting me to select a folder. I am debating between selecting "das-api" folder and "trunk" folder. When I press "Select Project Folder" button (circled in red color), it is selecting "trunk" folder. Now I wonder what folder should I select?