After vaccination the body builds up

Assertion : Interferons are a type of'antibodies produced by body cells infected by bacteria.

Reason : Interferons stimulate inflammation at the site of injury.

Which is an auto immune disease

Which of the following are Autoimmune disorders?

$A$. Myasthenia gravis  $B$. Rheumatoid arthritis

$C$. Gout  $D$. Muscular dystrophy

$E$. Systemic Lupus Erythematosus ($SLE$)

Choose the most appropriate answer from the options given below:

Write in details about Thymus.

Assertion : Interferons are effective against viruses.

Reason : Proteins which can be synthesized only by genetic engineering are effective against viruses.