Concept:The correct sequence forms a coherent sentence by placing the subject first, followed by its description, then the context, and finally the action.
Explanation:Start with the main subject:
R ("this is the final word of an educational philosopher").
Next,
Q begins with "who", which provides a relative clause describing the philosopher.
Then,
S ("on a world in which") gives the setting or context for the philosopher's action.
Finally,
P ("he urged so many to get involved") completes the sentence with the philosopher's exhortation.
Thus, the correct order is R → Q → S → P, which matches option D (RQSP).
Answer:Option D (RQSP)