Choose the word whose underlined part is pronounced or stressed differently from that of the others:

1)     A. support B. volunteer C. century D. fund

2) A. school B. else C. secretary D. position

3) A. favor B. able C. support D. offer

4) A. assistance B. similar C. register D. citizenship

5) A. hobbies B. bags  C. groups  D. organizations 

6) A. used B. named C. beloved D. founded