From the images P, Q and R given below, select the corresponding land use categories according to Alonso's Bid Rent Theory.

Step 1: Interpretation of Land Uses.
- P (Manufacturing): Manufacturing uses require more space, so they are generally located further from the CBD.
- Q (Residential): Residential areas tend to be located further than retail but closer to manufacturing.
- R (Retail): Retail establishments require high accessibility to the CBD for maximum customer reach and therefore are located closest to the CBD.
Thus, based on the theory and the provided images:
P = Manufacturing, Q = Residential, R = Retail.
Final Answer: (A)
Reading in the staff stationed at P measured by a dumpy level is 3.5 m. The dumpy level is stationed at Q. The Reference Level (RL) at point P is 96.5 m and the height of the dumpy level is 1.25 m. The RL at point Q is \(\underline{\hspace{1cm}}\) m.

