It's been a long time since I was a TWR controller but I'd say consign that phraseology to history; it's so open to misinterpretation that it's not funny. As in option C, you have no idea what the controller has in mind with respect to both arriving and departing traffic, although, by using that phraseology, he's opened himself to all sorts of possible scenarios.
Stick with standard phraseologies; almost invariably, they're the best ones to use. And, as has already been stated, if in doubt, request clarification from the ATCO.