Psychological resilience is the ability of the humans to recover very quickly from the difficult situation mentally and socially.
The traits shown by the resilient person are due to self-esteem, problem-solving skills, good health, self concept and many others which are considered individual-level protective factors as these factor help increase the well being of the individual.
Thus, individual-level protective factors are the correct answer.
NOT EXACT DEFINITION: Diseases that can be passed from one living organism to the other. Two examples are flu and several STIs (such as herpes). Sorry I couldn’t think of any more :)
