Read the following context and choose the best option to answer the question.
Context: I ' m happy to report that Mackenzie 's visit yesterday to the pediatrician went better than I expected . Knowing that she was about to get a humongous needle in her thigh made it particularly excruciating to stare down at her smiling , drooly little face while we sat in the waiting room , but she took it like a champ . We made a last - minute decision to decline the Rotavirus vaccine , so Mackenzie just got her DTaP yesterday . Our pediatrician was comfortable with this decision , and she did n't even make us sign the " I ' m a bad parent " memo that I ' ve heard that other doctors require .
Question: Who is the narrator in relationship to Mackenzie ?
Options: 
A. They are her pediatrician .
B. They are her patients .
C. None of the above choices .
D. They are her guardian .


D