Which of the following is mentioned in the passage as a way in which brown bears and sloth bears are similar?
- They tend to become aggressive when provoked.
- They live almost exclusively in treeless environments.
- They are preyed upon by animals that can climb or topple trees.
- They are inefficient in their locomotion.
- They have relatively large canine teeth.
除了D之外，其它的是不是都在原文中提到过？请指教！ | 
