To work with dispatch is to work is to work quickly. (Option C).
Who is a dispatch?
A despatch rider (or dispatch) is a military courier who rides a horse or a motorbike (or, in Egypt during World War I, camels).
A motorbike courier is sometimes known as a 'despatch rider' in the United Kingdom.
Armed forces utilized despatch riders to transmit urgent orders and communications between headquarters and combat units. They played an important role at a period when telecommunications were restricted and unstable. They could also deliver carrier pigeons.
Working as a dispatcher entails working quickly or with speed.
Full Question:
Although part of your question is missing, you might be referring to this full question:
To work with dispatch is to work
carefully
reluctantly
quickly
for pay