Which is the cause of Anthrax disease?

$S -$ Assertion: In typhoid,there is abdominal pain,constipation,and inflammation in the small intestine.
$R -$ Reason: In the diseased condition,$Salmonella$ $typhi$ is found in the human intestinal tract.

Typhoid is caused by $......$.

Match the following bacteria with the diseases:

Column-$I$	Column-$II$
$A$. Treponema pallidum	$I$. Plague
$B$. Yersinia pestis	$II$. Anthrax
$C$. Bacillus anthracis	$III$. Syphilis
$D$. Vibrio	$IV$. Cholera

$A$ : Anthrax is caused by a bacterium.
$R$ : Anthrax develops only in buffaloes and cannot be transferred to humans.

Diphtheria is caused by .............