Concept:Para jumble sentence arrangement is done by identifying logical and grammatical connections.
Explanation:The sentence begins with part R: "if I don't speak to them, it's because".
This is followed by part P: "they do not come within my subject".
Then part S: "and not because they are".
Finally part Q: "lightly esteemed by me".
Thus the correct sequence is R, P, S, Q.
The full coherent sentence reads: "If I don't speak to them, it's because they do not come within my subject and not because they are lightly esteemed by me."
Answer:Option D: RPSQ