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

Match each disease with its correct type of vaccine.

Column-$I$	Column-$II$
$(A)$ Tuberculosis	$(i)$ Harmless virus
$(B)$ Whooping cough	$(ii)$ Inactivated toxin
$(C)$ Diphtheria	$(iii)$ Killed bacteria
$(D)$ Polio	$(iv)$ Harmless bacteria

Pests resistant to insecticides have:

Identify the disease for which an arthropod vector is not required.

Read the following statements carefully and identify the incorrect statement$(s)$.
$(1)$ In $AIDS$,the count of $CD4$ cells increases.
$(2)$ Malignant tumors are cancerous tumors.
$(3)$ Pneumonia is a life-threatening disease.
$(4)$ Asthma can be caused by allergies.
$(5)$ Antibodies are made up of $\gamma$-globulin proteins.

What are lifestyle diseases? How are they caused? Name any two such diseases.