How many locks are operational in the state of Michigan?

The correct answer is five, as Michigan is home to several significant locks that facilitate navigation and shipping on its waterways. The most notable of these locks include the Soo Locks, which are among the busiest in the Great Lakes region, allowing ships to navigate between Lake Superior and Lake Huron. Additionally, there are other operational locks that contribute to the movement of goods and recreational boating on Michigan's extensive network of rivers and lakes. These locks play a crucial role in maintaining water levels and ensuring safe passage for vessels.

Understanding the number of operational locks provides insight into Michigan's role in water transportation and its geographic significance, especially when considering the state's access to the Great Lakes and its maritime industry. Other choices may seem plausible, but they do not accurately reflect the actual operational infrastructure in Michigan as of current data.