BOTH INTERNATIONAL & INLAND You are the stand-on vessel in a crossing situation. If you think the give-way vessel is NOT taking sufficient action to avoid collision, you should sound __________.

Correct Answer: Option C — the danger signal

Under COLREGS Rule 34(d) and Inland equivalent, when the stand-on vessel determines the give-away vessel is taking insufficient action to avoid collision, it must sound the danger signal consisting of at least five short and rapid blasts to signal immediate doubt.