Final answer:
A regulatory marker with a diamond with an X indicates that the area is restricted to vessels. Boaters should heed these markers for safety and legal adherence.
Step-by-step explanation:
A regulatory marker with a diamond with an X indicates areas that are restricted to vessels. The correct answer to the given question is option 1) Restricted. These markers are typically found on the water to inform boaters of specific laws and regulations they must follow in the area. In the case of a diamond with an X, watercraft may be not allowed in these areas because they might be reserved for swimming, contain hazards, or be environmentally sensitive, among other reasons. It is important for boaters to understand and respect these markers to ensure safety for everyone on the water.
In the case of a diamond with an X, watercraft may be not allowed in these areas because they might be reserved for swimming, contain hazards, or be environmentally sensitive, among other reasons. It is important for boaters to understand and respect these markers to ensure safety for everyone on the water.