Final answer:
The Piedmont Community Legislative Commission likely aims to increase speed limits and decrease driving time, according to the passage, with no mention of reducing traffic lights. The SAE opposes these changes, indicating their beliefs about the efficacy of existing speed limits. The correct option is D. II and III only.
Step-by-step explanation:
Based on the information provided in the passage, it is suggested that the Piedmont Community Legislative Commission's intention was to increase the legal speed limit on roads and highways and to decrease the amount of time spent driving. The SAE opposes Act #1432, indicating their belief that adjusting speed limits would not significantly reduce travel time due to the inevitable red lights that drivers encounter. There is no mention in the passage of an intention to reduce the number of city traffic lights. Therefore, the correct inference would be options II and III: the commission aims to increase speed limits and decrease driving time, making the answer II and III only.