Rachit,
This is a case where knowing too much can hurt you. On the OCA, you only have to know the VERY basics of compiling. Which means your example is out of scope. If this happens to you on the real exam and two answers are correct, think about which one requires you to assume less.
Luckily, the question doesn't try to trick you with that and there is no "package statement not required" answer! So you cna treat it "if this code is in a package, which would it be."