Recognizing cloud shapes tells you a lot about the weather. Large, white, fluffy clouds with rounded edges are cumulus clouds. They form when warm air rises and cools, condensing into puffball-like shapes. When these clouds stay small and scattered, they usually indicate fair weather. If they grow taller and darker at the base, they can become storm clouds (cumulonimbus) and bring rain or thunder. Other clouds have different signs: cirrus are thin, wispy high clouds that can hint at changes in the weather; stratus form a low, gray blanket often associated with drizzle or overcast skies.

Defensive sailing is taking early, decisive action to avoid a collision when the other vessel isn’t changing course. In this case you are the stand-on vessel, but the give-way vessel isn’t altering its course, so you must take action to prevent a collision. That means making a controlled change of course or adjusting speed to pass well clear, rather than continuing on your original path. Defensive sailing emphasizes proactively ensuring safety when others don’t respond, which is why it’s the best fit. The other ideas don’t match nautical practice here: staying on course would not reduce the risk, and terms like collision avoidance or defensive driving aren’t used in sailing in the same way.

The forward edge of a sail is called the luff—the edge that lies closest to the mast (or forestay on a jib) and runs toward the bow. It’s the leading edge into the wind as the sail fills. The other edges have different roles: the leech is the trailing edge, the foot is the bottom edge along the boom, and the head is the top edge or corner of the sail. So the edge facing toward the front of the boat is the luff.

The technique being tested is a controlled recovery pattern that uses an approach on a beam reach, then shifts to a close reach, and finishes with a maneuver to bring the person aboard. This sequence is characteristic of the figure-8 rescue, which is designed to maintain boat control while you loop around the victim to pass a line and position yourself for a safe recovery. Starting on a beam reach lets you move toward the casualty with good stability and visibility. Switching to a close reach tightens your control as you pass a line or make the last alignment needed to bring the person toward the boat. The final maneuver completes the recovery, bringing the person aboard in a controlled way. Other names do not describe this specific looping path and end-with-boarding sequence, so they don’t match the described rescue flow as accurately.