A Person Says to the Nurse, 'I'm Scared About a Terrorist

A person says to the nurse, 'I'm scared about a terrorist attack since I live so close to the airport'. Which of the following would be an appropriate response for the nurse to make to this person?

A) 'Have you thought about moving?'
B) 'What do you have in your home to help you in the event of a terrorist attack?'
C) 'It is natural to be concerned about this possibility'.
D) 'There is no need to be worried/.