Tourniquet is to bleeding as () A: relapse is to condition B: lotion is to skin C: hoist is to elevating D: splint is to movement E: inflation is to expanding

The basic features of infectious disease are A: There are infectivity, pathogen, epidemic, immunity. B: There are infectivity, patients, immunity, epidemic. C: There are source of infection, route of transmission, susceptibility, immunity. D: There are infectivity, epidemic, endemic, relapse. E: There are pathogen, reinfection, epidemic, immunity.