Final answer:
The atlas is the best informational reference to find highways, borders, and information on tourist attractions, as it provides detailed maps and a wealth of geographical information. The correct option is b.
Step-by-step explanation:
The best informational reference to use for finding highways, borders, and information on tourist attractions is an atlas. Atlases like the Hammond World Atlas, the National Geographic Atlas of the World, and the Times Atlas of the World are designed to help identify places and provide a wealth of information including population, climate, and industry.
Besides road maps and political borders, atlases can offer insight into population density, language patterns, soil types, and include information pertinent to travelers such as major tourist attractions.
In contrast, an almanac generally contains statistical information, data, and annual facts, which might not specifically include detailed maps or tourist attractions. An encyclopedia provides a broader scope of knowledge on a wide variety of topics but may not concentrate on geographic details and maps to the extent an atlas would.
While the all of these option might be tempting, it is the atlas that specifically specializes in the geographical areas of interest posed in the question. The correct option is b.