The correct answer is: D. intelligent transportation services.
ITS stands for Intelligent Transportation Systems. It is a broad term that encompasses a variety of technologies that are used to improve the efficiency, safety, and sustainability of transportation systems. ITS technologies can be used to manage traffic flow, improve public transportation, and provide real-time information to drivers.
A. Internet travel services is not a correct answer because it does not include the word “intelligent.”
B. Internet transportation security is not a correct answer because it does not include the word “services.”
C. Intelligent transportation security is not a correct answer because it does not include the word “systems.”