The correct answer is D. Uncomplicated
Step-by-step explanation:
The passage provides information about how to prepare for an emergency. This means the purpose of the passage is that families understand how to be prepared, for doing this, the author uses simple or uncomplicated language most people can understand rather than complex, academical or technical language. This can be seen in "People get scared and don't act right", " Each home should have an emergency chest" or "periodic checks and updates are recommended" that include simple and common words. Thus, due to the subject (how to prepare for an emergency), the author uses uncomplicated words.