Which theory posits that children who do poorly in school or who believe they have little chance of graduation are most likely to commit delinquent acts?

It is the Blocked Opportunity Theory. Opportunity is a human science hypothesis created by Richard Cloward and Lloyd Ohlin. The hypothesis expresses that wrongdoings result from a high number of ill-conceived openings and not from an absence of honest to good ones. The hypothesis was made from Merton's strain hypothesis to help address adolescent misconduct.