What are the acceptable methods for looking up a location in PC Miler?

The selection of zip code, mile marker, highway formula, and city/state as the acceptable methods for looking up a location in PC Miler is correct because these methods are standard and practical tools used within the software for accurately identifying locations.

Using a zip code allows users to quickly narrow down a specific area by postal code, which enhances efficiency in logistics and route planning. The mile marker method provides precise location referencing along highways, essential for transportation operations. The highway formula method combines the starting point and destination via highway identifiers, offering a straightforward way to compute routes. Additionally, city and state combinations can narrow down the search to specific areas for more accurate route planning and delivery schedules.

Each of these methods is effective for different scenarios and enhances the usability of PC Miler, which is tailored to meet the needs of transportation and logistics professionals seeking to optimize routes based on geographic data. Other choices might utilize valid concepts but lack the comprehensive efficiency and common application found with the methods included in the correct answer.