With which manual does the NAVPTO coordinate transportation arrangements?

The correct option is identified because OPNAVINST 4650.15 specifically outlines policies and procedures for Transportation Management, which includes coordination of transportation arrangements by the Navy Personnel Transportation Office (NAVPTO). This instruction is vital as it provides the framework for ensuring that transportation needs are met effectively for Navy personnel.

The focus of this instruction on coordinated transportation efforts makes it the essential reference for NAVPTO, differentiating it from the other options listed, which pertain to different aspects of transportation or logistical procedures and do not specifically address the coordination responsibilities of NAVPTO. Thus, OPNAVINST 4650.15 is the key manual that supports the necessary operations for transportation arrangements within the Navy.