Black quarter diseases is cause by

Answer: Option C

Black quarter diseases are caused by Clostridium bacteria.
Blackleg, black quarter, quarter evil, or quarter ill is an infectious bacterial disease most commonly caused by Clostridium chauvoei, a Gram-positive bacterial species. It is seen in livestock all over the world, usually affecting cattle, sheep, and goats. It has been seen occasionally in farmed bison and deer.
Most losses due to blackleg occur when the cattle are between the ages of six months and two years, although it can occur when they are as young as two months.