To cite an entry in an encyclopedia, use the instead of the author name as the opening item in
the citation.
a. title of the encyclopedia
b. medium of publication
c. title of the entry
d. publisher of the encyclopedia

3rd person, because the narrator is out of the story but explains the feeling of the main character

c) by giving an example of how mary beth tinker did, in fact, disrupt her mathematics class

explanation:

petitioner john f. tinker, 15 years of age, and solicitor christopher eckhardt, 16 years of age, went to secondary schools in des moines, iowa.