Answer :
A) A blue-and-white flag and a rectangular red flag with a white diagonal stripe - accurately describes the two types of diver-down flags.
The two types of diver-down flags are a blue-and-white flag called the Alpha flag and a rectangular red flag with a white diagonal stripe called the Diver-Down flag.
- The Alpha Flag: This is a blue-and-white flag used internationally to indicate that a vessel has divers in the water and is restricted in its ability to maneuver.
- The Diver-Down Flag: This is a red flag with a white diagonal stripe, used primarily in the United States to mark areas where diving activities are underway and to alert boaters to stay clear.
These flags are critical for ensuring diver safety by notifying nearby vessels and divers of underwater activity.