question_answer

      Polar bears are carnivores and prey on many arctic birds and fishes. However, under natural conditions, no one found polar bears predating any penguin. This is because [CDS]

A) penguins have chemical substance in their muscles which is toxic to polar bears

B) penguins are gregarious and always move in groups. Therefore, a polar bear cannot approach them

C) polar bears and penguins never coexist under natural conditions. The former lives in the North Pole while the latter lives in the South Pole

D) None of these