Travis Hirschi tested the principal hypotheses of social control theory. While evidence was strong ...

Travis Hirschi tested the principal hypotheses of social control theory. While evidence was strong and supportive, what is the most controversial aspect of Hirschi's conclusions?
 
  a. Youths who are strongly attached to parents were less likely to commit crime.
  b. Youths who were involved in conventional activities were less likely to engage in criminal behavior.
  c. Youths who maintained weak, distant relationships with people tended toward delinquency.
  d. Any form of social attachment is beneficial, even to deviant peers and parents.