<span>Taking the verb BEAT as an example, it is possible to classify it according to its principal parts; -infinitive: (to) Beat -present: beat / beats-past: beat-present participle or gerund: beating-past participle: had beaten<span> </span></span>
The answer is B explaination is because bears that hibernate is an example of structural adaptations because they have to adapt to the new structures for their new habitat in order to hibernate
