Regarding alternative transporting modes:
a. trucks are good for speed, frequency, dependability, and number of locations served.
b. pipelines are slower and less dependable than water transport, but also less expensive and able to serve more locations.
c. airways are faster, cheaper, and more dependable than railways.
d. waterways are slow, costly, and unable to handle a variety of shipments.
Answer: a. trucks are good for speed, frequency, dependability, and number of locations served.