Which one of the following options gives the correct matching of a disease with its causative organism and mode of infection?

1. A
   Elephantiasis — $\text{Wuchereria bancrofti}$ — With infected water and food
2. B
   Malaria — $\text{Plasmodium vivax}$ — Bite of male $\text{Anopheles}$ mosquito
3. C
   Typhoid — $\text{Salmonella typhi}$ — With inspired air
4. D
   Pneumonia — $\text{Streptococcus pneumoniae}$ — Droplet infection