It depends on whether you want the possessive form of porcupine (singular) or porcupines (plural) because there is a difference.
1. singular porcupine: just add an apostrophe followed by -s: porcupine's
2. plural porcupines: just add an apostrophe (not followed by -s): porcupines'
There should be a comma after pressured wanna must be changed to want to
Answer:
C) Both of his parents were veterans: his father had been in the Navy in Iwo Jima and Okinawa during World War II, and his
mother had served with the WAVES (Women Accepted for Volunteer Emergency Service).
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I think it would be D, hopefully this helped you
