Mr. Green visited his local hunting club and made an impassioned speech about the importance of using the locks on guns. His speech included this statement: Two children I know were injured by guns in their own homes; unfortunately, these incidents were never reported.

Which of the following is true of this part of Mr. Green’s speech?
Select one:
a. It shows that Mr. Green’s perspective is biased because he hates gun owners.
b. Actual research about gun ownership does not support Mr. Green’s claim.
c. Mr. Green is a reliable speaker because he cited this kind of evidence.
d. This piece of evidence is unreliable because it cannot be verified.