What Would an Upholder of "Family Values" Look to as the Cause

What would an upholder of "family values" look to as the cause of youthful drug-taking and violence?

A) The relative absence of peers creating a gap filled by the influence of parents
B) The relative over-presence of parents creating a lack of peers
C) The relative absence of parents creating a gap filled by the influence of peers
D) The relative absence of parents creating a gap filled by the influence of sports