Answer:
E). Inductive approach.
Step-by-step explanation:
As per the given description, the research project adopts an inductive approach as the researcher deduces a generalized conclusion(in the form of theory) that 'violent behavior is a function of deviant subcultures' which is based on certain specific examples of evaluation('investigation of urban gangs and violence'). Such an approach is primarily inclined towards proposing broad and generalized deductions from certain specified examinations or observations that carries the scope to be verified or discerned as true or false which is correctly justified by the given example. Therefore, option E is the correct answer.