Correct option is A
The correct sequence is PRQS.
S1 begins by describing the mouse running up and down on the sleeping lion.
P continues the story with the lion awakening and placing his paw on the mouse, ready to swallow it.
R follows, where the mouse pleads with the lion for pardon, addressing him as "O King."
Q elaborates on the mouse's promise not to repeat the offense and expresses gratitude for the lion's kindness.
S concludes the mouse's plea by suggesting that it might be able to help the lion one day.
S6 ends with the lion being amused by the mouse's words and releasing it.