What organism is able to cause an infection

A) Bacteria

B) Skin Cell

C) Red Blood Cell

D) White Blood Cell

B) Skin Cell is my answer

The pathogenic agent is found everywhere except New Zealand. The bacterium is extremely sustainable and virulent: a single organism is able to cause an infection. The common source of infection is inhalation of contaminated dust, contact with contaminated milk, meat, or wool, and particularly birthing products. So the answer is A.