Which one of the following is a mental disability?

Match List $I$ with List $II$:

List $I$	List $II$
$A.$ Common cold	$I.$ Plasmodium
$B.$ Haemozoin	$II.$ Typhoid
$C.$ Widal test	$III.$ Rhinoviruses
$D.$ Allergy	$IV.$ Dust mites

Choose the correct answer from the options given below:

Identify the odd one out in the context of diseases.

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

Match the Column-$I$ with Column-$II$ and select the correct option from the options given below:

Column-$I$ (Disease)	Column-$II$ (Pathogen)
$A$. Citrus canker	$P$. Protozoa
$B$. Malaria	$Q$. Fungi
$C$. Rust of wheat	$R$. Viroid
$D$. Bovine spongiform encephalopathy	$S$. Bacteria
	$T$. Prions

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.