Answer:
The given blank can be filled with needs.
Step-by-step explanation:
When one goes close to a dog who is hungry then it is possible that the dog might bite the person's hand as he will feel that the person is attempting to take his food away. As the food is the requirement of each living being, thus, this fundamental need makes the dog to function defensively for his food. Thus, a person getting bit by a starving dog when he or she comes close to his food is based on the behavior of needs.