Final answer:
Option D). A two-stroke engine can be used to drive equipment in the reverse direction without the use of gearing.
Step-by-step explanation:
A two-stroke engine is the kind that can power machinery in the opposite direction without the need for gearing. Two-stroke engines can easily change the direction of rotation by simply reversing the flow of fuel and air, in contrast to four-stroke engines that need gearing. Because of this, they are appropriate for uses requiring frequent direction changes, like small handheld power tools and outboard boat motors. Hence, Option D) is the correct answer to the given question.