Which term indicates a need to accelerate a current task concerning a person or vehicle?

The correct answer, "Expedite current assignment," indicates a clear directive to speed up the completion of a specific task related to a person or vehicle. In dispatch operations, this term communicates urgency, suggesting that the situation requires immediate attention and faster action to ensure timely resolution. When a dispatch center recognizes the need to accelerate a task, using terms like "expedite" conveys the importance of prioritizing that task over others, highlighting the necessity for rapid response.

In contrast, the other options do not convey the same sense of urgency or immediacy. "Disregard last transmission" suggests ignoring previous communication, which could lead to confusion or delays. "Call by telephone" indicates a method of communication rather than any acceleration related to tasks, which does not imply urgency on its own. "Check for wanted" refers to confirming if a person is wanted or has a warrant, which is a different context and does not inherently demand a faster action on a current assignment. Thus, "Expedite current assignment" stands out as the appropriate choice for expressing the need to quickly advance a task.