A high fever ~ that is, raising the temperature to make the body a less pleasant place for viruses and bacteria ~ is the first line of defence.
The answer is B
Step by step example:
The answer is C because of a person or their judgement
Safety tips- check weather before going outside, dress and pack accordingly, put on sunscreen to protect the skin.
Fire safety prevention guidelines- install smoke alarms, test alarms every month, talk with family about fire escape plans and practice them, and if it's in your house Get Out, Stay Out , and Call For Help