challenge: What is distinctive about the conidia of Harposporium anguillulae?
  
  A. They are sickle-shaped and grow out through the host body.
  B. They are irregular in shape and grow in a random pattern.
  C. They are spherical in shape and grow inside the host body.
  D. They are cylindrical in shape and grow on the surface of the host.
  Answer: 