Match the following
`{:(a,"Leishmania donovani",p,"Malaria"),(b,"Wuchereria boncrofti",q,"Amoebiasis"),(c,"Trypanosoma gambiense",r,"Kalaazar"),(d,"Enamoeba histrolytica",s,"Sleeping sickness"),(,,t,"Filariasis"):}`
A. a-r, b-t, c-s, d-q
B. a-r, b-t, c-q, d-p
C. a-s, b-r, c-q, d-p
D. a-r, b-s, c-t, d-p.
