Passage for Questions 1-3:
"The old oak tree stood like a sentinel, its gnarled branches reaching towards the sky, as if pleading for answers. The storm raged, and the thunder roared like a hungry beast. In the distance, a single flickering candle represented hope, a tiny ember against the encroaching darkness."
In the passage, the oak tree is described as "a sentinel." What figurative language device is being used?