Bertha s friends recently started drinking. she goes to a lot of parties with them

Bertha's friends recently started drinking. she goes to a lot of parties with them where she is always pressured by the others to have a drink. which is the best way for bertha to resist this pressure?
a.)fill a beer can with water and pretend to sip from it. this will make people think she's drinking and no one will pressure her.
b.)state firmly that she doesn't drink. if they still persist, she should start hanging out with people who don't drink.
c.)take one drink at the start of the evening and sip it slowly throughout the party. one drink won't harm her or get her into the habit.