The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.

P: He wanted to do something to deliver the humanity from all such misery. He reflected on this problem for long.

Q: Siddhartha was greatly touched as he saw an old man, a sick man and a dead body.

R: At last on hearing some words from the mouth of a hermit which encouraged him to renounce the world, he decided to leave the palace and go into the forest for meditation.

S: Before going, he had a lasting glance on his beloved wife Yashodhra and son, Rahul, who were enjoying a sound sleep at midnight.