Final answer:
Fishermen and sailors are the primary users of tidal current tables, which are essential for safe and effective marine navigation and fishing activities.
Step-by-step explanation:
The primary users of tidal current tables published for coastal locations are fishermen and sailors (b). These tables provide crucial information regarding the times and strength of tides and currents, which are essential for navigation, safety, and efficiency in marine operations.
For instance, understanding tidal patterns is vital for fishermen to optimize their catch and for sailors to plan their routes to harness the energy of the ocean currents. Additionally, knowledge about tidal waves, which can be caused by events such as a large meteor hitting the ocean, is also relevant for these groups in order to safeguard their operations at sea.