A Malaria Infection Almost Immediately Puts a Sick Person in Bed

A malaria infection almost immediately puts a sick person in bed. If the pathogen has to infect other people, wouldn't it be better if it weren't quite so bad initially, so the victim could get around?

A) Yes, but malaria is transmitted by mosquitoes, not humans, so it doesn't matter if the infected human is confined to bed right away.
B) Yes, but all pathogens are selected to make the host as sick as possible as quickly as possible.
C) Yes, but since we have no effective drugs, this is what happens.
D) No, because "germs" like malaria spread person to person easily through the air, so an infected person doesn't need to actually contact another one to transmit the pathogen
E) No, because then the pathogen wouldn't be reproducing quickly enough to outcompete the normal bacterial population on the person