What type of immunity is provided by the injection given in cases of tetanus and snakebite?

Match the columns:

Column-$I$	Column-$II$
$(a)$ Physical barrier	$(1)$ Skin
$(b)$ Physiological barrier	$(2)$ Interferon protein
$(c)$ Cellular barrier	$(3)$ Leucocytes
$(d)$ Cytokine barrier	$(4)$ Saliva in the mouth

In which of the following tracts is Mucosa-Associated Lymphoid Tissue $(MALT)$ $NOT$ present?

Which of the following components is $NOT$ associated with the immune system?

Select the correct pair:

Column-$I$	Column-$II$
$A$. Physiological barrier	$1$. Skin
$B$. Cellular barrier	$2$. Macrophages
$C$. Physical barriers	$3$. Interferons
$D$. Cytokine barriers	$4$. Tears
	$5$. Mucus

Identify the correct statements from the following:
$(i)$ The skin is the main physical barrier.
$(ii)$ Mucus coating of the epithelium lining the respiratory,gastrointestinal,and urogenital tracts is a physiological barrier.
$(iii)$ $IgA, IgM, IgE, IgG$ are types of $T$-cells.
$(iv)$ The primary immune response is very intense.