An OOW, while following an icebreaker, proactively requests a reduction in speed when noticing the vessel's ice-handling becoming noticeably more laboured, well before any actual besetment risk, and the icebreaker adjusts accordingly with no further issue. How should this be regarded?

A. This action should be discouraged since requesting a speed reduction without an actual emergency unnecessarily slows the overall transit

B. Only the icebreaker's own judgement should ever determine escort speed, with no input expected or valued from the following vessel's OOW

C. As a clear example of the "Monitor" and "Respond" resilience capacities working together — noticing a subtle change in the vessel's own performance and acting on it promptly, before it became a genuine problem, is exactly the kind of proactive vigilance that should be recognised and reinforced, consistent with the Safety-II principle applied throughout this content

D. This event has no particular significance since no besetment or collision risk actually materialised

A. Once an icebreaker has passed through an area, the channel remains open indefinitely with no risk of re-closing behind it

B. Following distance and channel position have no practical bearing on the difficulty of ice the following vessel will encounter

C. The following vessel should always travel well outside the broken channel to avoid the icebreaker's wash, regardless of the harder ice this involves

D. Maintaining a safe following distance and staying accurately within the broken channel the icebreaker has created, since ice at the channel edges (or ice that has begun to close back in behind the icebreaker) is far more resistant than the freshly broken channel itself — straying from the channel risks the vessel encountering significantly harder, unbroken ice than the icebreaker's passage was calculated to manage

A. Following distance has no meaningful safety trade-off; any distance is equally safe regardless of ice conditions

B. Following too closely risks collision with the icebreaker if it slows or stops suddenly (e.g. encountering a particularly difficult ice ridge), while following too far back risks the broken channel beginning to close in behind the icebreaker before the following vessel reaches that section, exposing it to harder ice than intended — the appropriate distance depends on ice conditions, vessel manoeuvrability, and communication with the icebreaker, not a single fixed rule

C. Following too far back is always safer than following too closely, with no risk of the channel closing in over that distance

D. Following too closely is always safer than following too far back, with no countervailing collision risk to consider