Choose the most appropriate words to make the sentence complete.A great number of citizens rush to the [  ]（陵园) to pay respects to four PLA servicemen who sacrificed during a border clash with Indian troops. Millions of netizens [  ] （纪念) these four [  ] (烈士) by reposting, leaving comments and composing their own posts.
A、cemetery, commemorate, servicemen 
B、graveyard, memorize, martyrs  
C、cemetery, commemorate, martyrs