Choose the most suitable ending for the unfinished story, considering the tone and theme. The old lighthouse keeper, Silas, had lived a solitary life, his only companions the crashing waves and the distant cries of gulls. For fifty years, he had faithfully kept the light burning, a beacon of hope for sailors navigating the treacherous coast. One stormy night, as the wind howled and the rain lashed against the tower, Silas noticed a faint, flickering light far out at sea, not a ship's lamp, but something ethereal, almost magical. He squinted, his weathered eyes trying to pierce the gloom. The light grew brighter, pulsating with an otherworldly glow, and then, a figure began to emerge from the mist, walking on the water towards the lighthouse. Silas, despite his age, felt a strange mix of fear and wonder, knowing his solitary vigil was about to change forever... Which of the following best completes the story, maintaining its mystical and transformative tone?
A) ...He quickly radioed the coast guard, reporting the strange phenomenon, and waited for their arrival.