Which of the following choices gives the correct definitions for both "affix" and "root"?
a. Affix- Words and phrases near a word that show what it means; Root- A word part added to the beginning or the end of a word
b. Affix- The most basic part of a word; Root- A word part added to the beginning or the end of a word
c. Affix- A word part added to the beginning or the end of a word; Root- Words or phrases near a word that show what it means
d. Affix- A word part added to the beginning or the end of a word; Root- The most basic part of a word