The Styles of Workplace Writing Are: Narrative, Argument, Definition, Description

The styles of workplace writing are: narrative, argument, definition, description and instruction.Indicate which of these styles is used in each of the following sentences from technical reports.
A) The driver lost control of his vehicle, which mounted the footpath and collided with a telephone booth, injuring an elderly man who was standing in the booth.
B) Smoking results in illness not only to the smoker but also to those standing or sitting near the smoker. This is why we have banned smoking in all public buildings in the city.
C) Torque, in a motor, is simply a measure of how much load it can turn or 'lift'.
D) The engine with which this fuel-metering device is to be used will allow a flow of air to be drawn almost continuously through the carburettor's throat.
E) The rotary pump is the most effective for this application.