Following this and similar Antarctic incidents, the cruise/expedition industry and IMO took further steps toward what became the Polar Code's formal adoption. What does this illustrate about how maritime safety regulation typically develops?

A. A single incident, by itself, is always sufficient to produce an entirely new mandatory international regulatory code with no further contributing factors

B. Maritime safety regulation has historically never been influenced by actual incidents or casualties of any kind

C. The Polar Code was developed entirely independently of any real-world incidents, based purely on theoretical risk modelling

D. Major regulatory frameworks like the Polar Code often develop incrementally, informed by a series of real operational incidents (not just one single catastrophic event) that collectively demonstrate gaps in the existing framework — this is a more typical pattern than a single disaster producing an entire new regulatory code in isolation

A. Growlers and small ice fragments present a much smaller radar cross-section and visual profile than a large iceberg, making them genuinely difficult to detect at a safe range even with functioning radar and an attentive watch — a vessel can be ice-strengthened and well-handled and still be vulnerable to contact with ice that is detected too late simply because of its small physical size

B. Growlers are always easier to detect than large icebergs because of their lower profile against the horizon

C. Growlers present no navigational hazard of any kind to a vessel's hull, regardless of size or speed

D. Radar detects growlers and large icebergs with identical reliability and range, with no practical difference

A. The location of a breach relative to the waterline has no bearing on flooding rate or urgency of response

B. A below-waterline breach means flooding begins immediately and continues as long as the breach remains open and the vessel's draft keeps it submerged, so damage assessment and the decision on whether the vessel can be saved (pumping, damage control, heading for shallow water) versus whether evacuation must be prioritised needs to happen quickly and realistically, rather than assuming the vessel will necessarily remain afloat long enough for extended damage control efforts

C. A below-waterline breach is operationally identical to an above-waterline scrape, with no difference in urgency or required response

D. Below-waterline breaches always self-seal within a short period with no need for active damage control or evacuation planning