Who would most likely develop an alcohol addiction in adulthood?

a teen who uses alcohol to cope with family problems
a teen who has a drink with friends at a birthday party
a young adult who drinks once a week after work with friends
a young adult who serves as the designated driver for parties

A teen who uses alcohol to cope with family problems would be most likely to develop an alcohol addiction in adulthood. Using alcohol as a coping mechanism for emotional distress or difficult family situations can increase the risk of developing alcohol dependency over time.