Final answer:
The correct answer is a) Red flag with a white diagonal stripe, which is internationally recognized as a signal indicating divers are in the water. This flag, also called the Alpha or A flag, is used to alert other individuals in the area to exercise caution.
Step-by-step explanation:
Divers in the water are indicated by flying a specific flag for safety reasons. The correct answer to the question is a) Red flag with a white diagonal stripe, which is internationally recognized as the dive flag. The correct answer is a) Red flag with a white diagonal stripe, which is internationally recognized as a signal indicating divers are in the water. This flag, also called the Alpha or A flag, is used to alert other individuals in the area to exercise caution. This flag is known as the Alpha or A flag, which signifies 'diver down' or 'underwater operations' and alerts other boaters to keep clear and move at a slow speed. It's essential for divers to use this flag to ensure their safety and inform others of their presence in the water.