The process by which one's physiological defense system becomes less efficient at fighting illness is called and this process is enhanced by elevated stress levels.

I think that would be immunocompromised, but I'm not sure

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail

because the early people found out about it.