Multiple sprouts in a pot

Ok so I planted multiple seeds in a few dixie cups not expecting them all to sprout, but they did. So now I have 2-3 sprouts per cup. Im transplanting outdoors soon and I don't know what to do with them. Should I plant them together? Kill one? Or is it safe to separate them before transplanting?

if they are very new you should be ok to seperate them with no problem. they might stress a little but its better than the plant getting older and killing each other. just wash your had before doing it and be very careful.