Which of the following sentences is FIRST after the rearrangement?

Rearrange the following sentences to form a coherent paragraph.
(F) A poor monkey once happened to meet a kind and generous king.
(D) The monkey was living in misery and had nothing to eat or wear.
(E) Seeing his condition, the king felt pity and gave all the necessary riches and comforts to him.
(A) Soon, the monkey’s life changed, and he became wealthy and prosperous.
(C) However, after becoming rich, the monkey grew arrogant and forgot his humble beginnings.
(B) In his pride, he even began to ignore the very king who had once helped him.

To determine the correct order of the sentences, we need to establish the logical flow of the narrative:
1. Sentence (F) introduces the main characters and the setting: "A poor monkey once happened to meet a kind and generous king." This is the introductory sentence of the story.
2. Sentence (D) elaborates on the monkey's initial state of deprivation: "The monkey was living in misery and had nothing to eat or wear."
3. Sentence (E) describes the king's reaction to seeing the monkey's miserable condition and his act of kindness: "Seeing his condition, the king felt pity and gave all the necessary riches and comforts to him."
4. Sentence (A) shows the direct consequence of the king's charity: "Soon, the monkey’s life changed, and he became wealthy and prosperous."
5. Sentence (C) introduces a turning point in the monkey's attitude after gaining wealth: "However, after becoming rich, the monkey grew arrogant and forgot his humble beginnings."
6. Sentence (B) provides the final detail of the monkey's arrogance, specifically how it affected his relationship with his benefactor: "In his pride, he even began to ignore the very king who had once helped him."

Thus, the complete coherent paragraph is formed by the sequence F - D - E - A - C - B.

The sentence that comes first after rearrangement is (F).