Final answer:
The phrase 'may never be fully untangled' supports an objective tone by acknowledging the limitations in understanding historical events fully.
Step-by-step explanation:
The author's use of the phrase "may never be fully untangled" affects the tone of the excerpt by suggesting an acknowledgment of the complexity and uncertainty surrounding historical events. This expression supports an objective tone because it indicates that the truth behind historical facts can be elusive and acknowledges the limitations in fully understanding what occurred. Whilst the piece mentions a significant historical event, the language employed does not aim to persuade, conversely it invites the reader to consider the inherent difficulties in deciphering the complete history of events like those involving the Bell Rock and the wrecks that occurred there. The author conveys a respectful treatment of history, signaling a clear awareness that knowledge has its bounds.
The author's use of the phrase 'may never be fully untangled' supports an objective tone by acknowledging that not all the facts are known. The phrase suggests that there is still uncertainty surrounding the true historical background of the events described. This objective tone helps to convey the idea that further investigation or research is needed to fully understand the history of the Rock and the events mentioned.