Marching band in highschool defined my entire life for literally all of the years I was IN highschool, and I played marimba, so keyboard it is! It feels a little wrong to pick the non-percussion option, since marimba is a percussion instrument and I defined myself as "percussionist" for so long, but ultimately, my decision was made with the idea in mind that if you set a drum kit and a synth in front of me, I'd fare a lot better with synth than a drum kit lol.
...plus a marimba is objectively a keyboard like. It Is A Keyboard. It's not an electronic keyboard or a piano, but by all definitions it is a keyboard and I called it my keyboard the entire time, so. Keyboard it is!