Read the following passage and answer the question.
**Passage:**
'The city's policy on the use of official vehicles is explicit. Vehicles are to be used for official city business only and must be returned to the municipal depot by 6:00 PM daily. Any use of a vehicle after 6:00 PM requires pre-approved overtime authorization from a department head. The policy strictly prohibits using vehicles for personal errands, such as shopping or commuting to an employee's home, at any time. All trips must be recorded in the vehicle's logbook.'
Which of the following scenarios describes a direct violation of the policy?
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A
A department head takes a city vehicle to an all-day conference and returns it to the depot at 5:45 PM.
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B
An inspector drives a city car to a work-related training seminar and stops at a fast-food drive-thru for lunch on the way back to the office.
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C
An employee receives written approval from their department head to keep a vehicle overnight to respond to an early morning emergency call.
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D
A sanitation supervisor, while driving between two job sites, uses a city vehicle to pick up their personal dry-cleaning.