Identify the given chemical structures and select the correct option.

Match the items in List-$I$ with List-$II$ and select the correct option.

List-$I$	List-$II$
$(1)$ $ELISA$	$(A)$ Typhoid
$(2)$ Widal test	$(B)$ Diphtheria
$(3)$ Mantoux test	$(C)$ Tuberculosis
$(4)$ Schick test	$(D)$ $AIDS$

Match the following columns and choose the correct option:

Column-$I$	Column-$II$
$1$. $Haemophilus$ $influenzae$	$p$. Malignant malaria
$2$. $Entamoeba$ $histolytica$	$q$. Elephantiasis
$3$. $Plasmodium$ $falciparum$	$r$. Pneumonia
$4$. $Wuchereria$ $bancrofti$	$s$. Amoebiasis

What does the part labeled '$A$' in the given figure represent?

Match the following conditions associated with mental disorders in Column-$I$ with their respective meanings in Column-$II$ and choose the correct option.

Column-$I$	Column-$II$
$i$. Bulimia	$a$. Loss of memory
$ii$. Anorexia nervosa	$b$. Extreme overindulgence in food
$iii$. Amnesia	$c$. Sadness and inactivity in life
$iv$. Depression	$d$. Emotional aversion to food

How many of the following diseases can be classified as autoimmune diseases?
Rheumatoid arthritis,Myasthenia gravis,$AIDS$,$SCID$,Vitiligo,Hashimoto's disease,Multiple sclerosis,Cancer,Type-$I$ diabetes.