The correct answer is C) propose or answer one or two blast whistle signals given by the other vessel if passing within half a mile. This is the correct answer because the Inland Navigation Rules state that when two vessels are meeting in a narrow channel, the vessel proceeding upbound (in this case, your vessel) must propose or answer the appropriate whistle signals to coordinate the passing. Since there is no current, the rules dictate that you must give the outbound vessel the right-of-way by maneuvering to your side of the channel. The other answer choices are incorrect because option A would put you on the wrong side of the channel, option B would require you to stop and let the other vessel sound the signals, and option D would go against the Inland Navigation Rules that require you to propose or answer the whistle signals.