Task: Question Answering
Input (English): When taken to a new habitat, non-native plants often threaten native plants of the new habitat. Why do non-native plants threaten native plants?  
 (A) Non-native plants are able to mutate rapidly. (B) Non-native plants cause native animals to relocate. (C) Non-native plants are able to be used for medicine. (D) Non-native plants compete with native plants for resources.
Output (English): D