The correct option is
C Both A and B
Penguins are a group of aquatic, flightless, winged birds living almost exclusively in the Southern Hemisphere, especially in Antarctica. They are highly adapted for life in the water. They have countershaded dark and white plumage and their wings have evolved into flippers. Most penguins feed on krill, fish, squid and other forms of sealife caught while swimming underwater. They spend about half of their lives on land and half in the oceans
So, the correct answer is 'Both A and B'