In which of the following situations is someone using peer pressure based on a rejection tactic?

a.Joe has had the same friends since childhood. They all started drinking recently. Joe thinks he should start drinking too or they won't want him around.

b.Martha's friends regularly take Ecstasy at parties. When she refused to take any, they told her she was a bore.

c.Justina's friends drink regularly. They recently told her to quit hanging around because she insists on staying sober.