In the given diagram of the life cycle of Anopheles,what do the parts labeled '$A$' and '$B$' represent respectively?

Match the following columns and select the correct option:

Column-$I$	Column-$II$
$(i)$ Typhoid	$(a)$ Haemophilus influenzae
$(ii)$ Malaria	$(b)$ Wuchereria bancrofti
$(iii)$ Pneumonia	$(c)$ Plasmodium vivax
$(iv)$ Filariasis	$(d)$ Salmonella typhi

Match the diseases given in Column-$I$ with their related aspects (pathogens/preventive measures/treatment) given in Column-$II$.

Column-$I$	Column-$II$
$(a)$ Amoebiasis	$(i)$ Treponema pallidum
$(b)$ Diphtheria	$(ii)$ Use of hygienic food and water
$(c)$ Cholera	$(iii)$ $DPT$ vaccine
$(d)$ Syphilis	$(iv)$ Use of oral rehydration therapy

In the given diagram of the life cycle of Plasmodium,what does the part labeled '$A$' represent?

Given diseases: Pneumonia,Plague,Diphtheria,Common cold,Malaria,Ringworm,Amoebiasis,Dysentery,Typhoid,$AIDS$.
$\rightarrow$ Number of bacterial diseases $- P$
$\rightarrow$ Number of viral diseases $- Q$
$\rightarrow$ Number of protozoan diseases $- R$
$\rightarrow$ Number of fungal diseases $- S$
Select the correct option for $P, Q, R$ and $S$.

The main reason why antibiotics could not solve all the problems of bacteria-mediated diseases is: