Fact 1: Some parasites live on the surface of their host.

Fact 2: Leeches are external parasites.

Given the two facts above, answer the question "What unwanted creature would be found on the surface of a human body using it as a host? " with the following options: 
- Tapeworm.
 - Leeches.
 - Pesticides
 - animals
 - insects
 - Hookworm
 - bacteria
 - Bracelet.


 

  Leeches.       