Botox Is a Toxin Produced by the Bacterium Clostridium Botulinum

Botox is a toxin produced by the bacterium Clostridium botulinum.When ingested with tainted food,Botox can cause distress by paralyzing the intestines,and in high doses can kill by paralyzing muscles needed for breathing and heartbeat.Why would Clostridium botulinum express botox?

A) To give the bacteria more food
B) To give the bacteria more oxygen
C) To prevent other bacteria from entering the gut
D) To prevent the intestines from removing the bacteria
E) To prevent antibiotics from entering the gut