Step 1: Habitable Room Minimum Width.
\nNBC 2016 mandates a minimum width of 2.4 m for habitable rooms like living rooms or bedrooms. \n\[\nP \Rightarrow 5\n\] \n\n \n
Step 2: Stair Flight Minimum Width.
\nAs per NBC, stair flights in residential buildings must be at least 1.0 m wide for safe passage. \n\[\nQ \Rightarrow 1\n\] \n\n \n
Step 3: Kitchen Minimum Width.
\nNBC requires a minimum width of 1.8 m for kitchens to ensure adequate circulation and platform space. \n\[\nR \Rightarrow 4\n\] \n\n \n
Step 4: Bathroom Minimum Width.
\nBathrooms require a minimum width of 1.2 m for practical usability. \n\[\nS \Rightarrow 3\n\] \n\n \n
Step 5: Concluding Match.
\nThe identified sequence is: \n\[\nP-5, \; Q-1, \; R-4, \; S-3\n\] \n\nThis corresponds to Option (D). \n\n \n
Final Answer: \n\[\n\boxed{\text{(D) P-5, Q-1, R-4, S-3}}\n\]