The majority of studies focusing on have found that those most likely to commit delinquent acts are young people who do poorly in school or who believe that they have little chance of graduation.

Blocked opportunity

Explanation: Engagement in crime could stem from a series of events, However, studies related to blocked opportunity which could be explained as an individual's perception or thought of having limited or restricted access to certain essential and important elements or benefits which one should be entitled to. These essential may be education, social welfare benefits, good employment and other legal or legitimate offers which citizens can indulge in to make a living and become fulfilled. However, when opportunities of such cease, individual's especially young, youthful and vibrant individuals may turn to other chores which seems more irrational and hence engage in delinquent activities.

protectionism fosters competition and keeps price regulated is not an argument in favor of protectionism.

answer; gender,race,age,/// (d) all of these;