The correct answer is (c), sperm whale. Sperm whales are the largest of the toothed whales, and the second largest of all living animals, after the blue whale. They can grow up to 67 feet long and weigh up to 400 tons. Sperm whales are found in all oceans of the world, and they typically live for about 70 years. They are carnivores, and their diet consists mainly of squid. Sperm whales are intelligent animals, and they have been known to use tools. They are also known for their large heads, which contain a waxy substance called spermaceti. Spermaceti is used by sperm whales to produce sound, and it is also used in some products, such as candles and lubricants.
The other options are:
(a) Finback whale: Finback whales are the second largest of the baleen whales, after the blue whale. They can grow up to 85 feet long and weigh up to 100 tons. Finback whales are found in all oceans of the world, and they typically live for about 80 years. They are carnivores, and their diet consists mainly of krill and small fish. Finback whales are intelligent animals, and they have been known to use tools. They are also known for their long, graceful fins.
(b) Blue whale: Blue whales are the largest animals on Earth. They can grow up to 100 feet long and weigh up to 200 tons. Blue whales are found in all oceans of the world, and they typically live for about 80 years. They are carnivores, and their diet consists mainly of krill and small fish. Blue whales are intelligent animals, and they have been known to use tools. They are also known for their beautiful songs.
(d) Humpback whale: Humpback whales are baleen whales, and they are the second most abundant type of whale in the world. They can grow up to 50 feet long and weigh up to 40 tons. Humpback whales are found in all oceans of the world, and they typically live for about 50 years. They are carnivores, and their diet consists mainly of krill and small fish. Humpback whales are intelligent animals, and they have been known to use tools. They are also known for their acrobatic displays.