What is the orca also known as?

A Beluga whale
B Killer whale
C Pilot whale

The name ‘killer whale’ is thought to come from Spanish sailors who saw groups of orcas hunting big whales. These apex predators are at the top of the food chain with a diet that includes a smorgasbord of sea creatures including fish and penguins in addition to whales.

The correct answer is Killer whale.