The correct answer is A. Olive Ridley.
The Olive Ridley sea turtle is a small, migratory sea turtle found in tropical and subtropical waters around the world. It is the most common sea turtle in the world, and it is also one of the most endangered. The Olive Ridley is known for its unique arribada nesting behavior, in which thousands of turtles come ashore to lay their eggs at the same time. This phenomenon is thought to be a way for the turtles to increase their chances of survival, as it makes it more difficult for predators to find and eat their eggs.
The Star Tortoise is a species of tortoise found in the Indian subcontinent. It is a medium-sized tortoise, with a carapace that is up to 20 inches long. The Star Tortoise is named for the star-shaped pattern on its carapace. It is a shy and retiring tortoise, and it is not often seen by humans.
The Travancore Tortoise is a species of tortoise found in the Western Ghats of India. It is a small tortoise, with a carapace that is up to 12 inches long. The Travancore Tortoise is named for the Travancore region of India, where it is found. It is a shy and retiring tortoise, and it is not often seen by humans.
The Olive Ridley is the only marine tortoise that shows the unique phenomenon “arribada”.