Which sentence correctly forms the plural of the number 6?
A. Herb's Zip Code Has Four 6's and a 2.
B Herb's Zip code has 4 6 and a 2.
C. Herb's Zip code has four 6's and a 2.
Or D. Herb's zip code has four 6's and a 2.
PLZ HELP IM STUCK ON THIS SO HARD ITS ALMOST BEEN AN HOUR OF ME TRYING TO FINISH THIS... :) Thank you!