Which Is NOT a Reason That It Would Be More

Which is NOT a reason that it would be more difficult to eradicate Lyme disease than rubeola or rubella?

A) Lyme disease is transmitted by Ixodes tick vectors-it would be impossible to eliminate these ticks from earth. 
B) The causative agent of Lyme disease is harbored in intermediate hosts (mice and deer) -elimination of these would be impossible.
C) Rubeola and rubella only infect humans-if all humans were immune (through vaccination for example) , the diseases would be eliminated. 
D) Lyme disease is cannot be treated successfully with antimicrobials, while rubella and rubeola can be successfully treated-it is thus easier to eliminate them.
E) These are all valid reasons to explain why eradicating Lyme disease would be more difficult than eliminating rubella and rubeola.