Final answer:
The subject of this question is Engineering. Increased fuel efficiency, improved safety, and increased sophistication of controls and instruments are all advancements in the field of engineering.
Step-by-step explanation:
The subject of this question is Engineering. Increased fuel efficiency, improved safety, and increased sophistication of controls and instruments are all advancements in the field of engineering.
For example, the development of reliable and powerful engines, such as turbofan engines, has led to increased fuel efficiency in cars and airplanes. The use of lightweight and strong materials has also contributed to fuel efficiency and improved safety in vehicles. Furthermore, the development of electronic instrumentation and actuators has enhanced the safety and control of vehicles.