While operating a bus, which interaction with riders should the driver avoid?
Correct answer: D – Unnecessary conversation or other distracting activity
The Oklahoma passenger-vehicle section instructs bus drivers not to talk with riders unnecessarily while driving. The same guidance applies to any other distracting activity. Brief communication needed for safe operation or rider instructions may be necessary, but ordinary conversation must not divert attention from controlling the bus and monitoring traffic.
Source: Commercial Driver’s License Manual – Modernized Testing System — § 4.5, “Prohibited Practices” ([oklahoma.gov](https://oklahoma.gov/content/dam/service-oklahoma/Documents/CDLDriverManual.pdf))

