I need to combine rows based on whether 3 columns have duplicate values. Then I need to combine those columns' values into 1 column.
Please see illustration below.

I have come across the multi-row tool and iterative macros (though I haven't gone through the details just yet), but I wanna know what's the best and simplest way to do this. I'm fairly new to Alteryx. Thanks in advance, everyone, and more power to the community.