I recently tried to locate an element because I was unable to identify an x-path and after putting a list in a loop, I noticed that for some elements `isDisplayed()` returned false, but `isEnabled()` true. How is it possible? 

Could it be that the element was hidden somewhere on the background, but still enabled? By the way, in my perception "enabled" is when you can bring it under focus, right? 

Also, for all elements were `isDisplayed()` returned false, is `Selected()` also returned false. Am I right that if `isDisplayed()` returns fals, `isSelected()` can never return true and it can only return true if `isEnabled()` returns true?