Arrange P, Q, R and S in order to make a sensible story.P: A grammarian fell into a well one day and had difficulty climbing up the slippery sides.Q: The grammarian replied, "I would certainly appreciate your help. But by the way, you have committed an error in your speech," which the grammarian proceeded to specify.R: "A good point," acknowledged the dervish. "I had best go off awhile and try to improve my skills." And so he did, leaving the grammarian at the bottom of the well.S: A little later, a Dervish chanced by and heard the man's cries for succor. In the casual language of everyday life, the dervish offered aid.Select the correct option among the given choices.

• A. PSQR          
• B. RPQS
• C. QPSR              
• D. SPQR
• E. None of these