Context: This species of whale lived about 12 million years ago. It could grow to be over 50 feet long and hunted dolphins, seals, and even other smaller whales! The scientists who discovered the whale's fossil named it after Herman Melville, author of the novel Moby Dick.
What is this whale's scientific name?
A. Livyatan breviceps
B. Livyatan melvillei
Determine the correct option from the provided choices and reply with its corresponding letter.

B