Which of these is a challenge to social relationships as a result of nicotine and tobacco use? yellow teeth and nails
extra taxes on cigarettes
fear of expulsion from school
penalties from buying cigarettes if underage

i think the answer is c

Explanation:

bc the other ones all have to do with problems for yourself but c is a social situation that could impact your relationship with people.

1."lessen the worth of ."

2."increase the worth of."

3." beyond the worth of."

4."against the worth of ."