Which one of the following statements BEST describes transportation networks in the Mexico, Central America, and Caribbean region? Investing in shared public services, such as a regional transportation infrastructure is cost prohibitive. People's access to transportation, goods, and services is about the same, especially in rural areas. Most countries in the region benefit from easy access to air, water, road, and railway transportation. Much of the region has a good system of navigable water transportation and highways. Substandard infrastructure is one of the most significant barriers to development in the region