✅ use one string if a condition is true, else use another string

Sorry if the title is unclear but is there something like python's

foo = "hello" if condition else "world"

foo = "hello" if condition else "world"

foo = "hello" if condition else "world"

foo = "hello" if condition else "world"

(This is not how I'm actually going to use it, it's just an example)
But for c#? Or will I just have to do something like set a variable beforehand?