Answer A


 (a) is the best choice for question 1. The CDC is a reputable government agency that provides statistics and other information about communicable diseases.

 Answer B


(b) is the best choice for question 2. It is a hoax site. This site looks very reputable but this foundation does not exist. Note the web address of this site. 

 Answer C


(c) Wikipedia is a collaborative project that allows volunteers to submit information about topics. Anyone can edit and change entries so the information may not always be correct. Use with caution.  

 Answer D


(d) This is a web site geared towards children. Though there is information about worm, the guinea worm is not included.