Final answer:
The four key stages of modal selection include cost analysis, capacity assessment, speed evaluation, and regulatory compliance. The answer is d) Regulatory compliance.
Step-by-step explanation:
The four key stages of modal selection include cost analysis, capacity assessment, speed evaluation, and regulatory compliance. Therefore, the answer is d) Regulatory compliance. Cost analysis involves evaluating the financial implications of selecting a particular mode of transportation. Capacity assessment involves assessing the ability of a mode of transportation to handle the required volume of goods. Speed evaluation involves considering the transit time and delivery speed of each mode. Lastly, regulatory compliance involves ensuring that the selected mode of transportation complies with all relevant laws and regulations.