Answer:
Because the people you have on that list already know that you need help and will help you they know the situation so they will help and you'll know who you can count on when they are added to that list
Explanation:
Certain strains of bacteria are resistant to different antibiotics. Like if someone has a bad case of the flu your not going to treat them with cold medicine. Hope this is helpful.
The SrRS measures internal stressors; it measures how much stress load we carry