The first type of sex work in which adolescents usually become involved is ________.

A) Internet sex purveying
B) working in brothels
C) working as call girls
D) streetwalking

Streetwalking, also known as prostitution or solicitation, is the most common type of sex work that adolescents become involved in. This is often due to financial need, familial or societal pressure, and lack of education or other job opportunities. Internet sex purveying and working in brothels or as call girls are less common, and often require a higher level of organization and access to resources that may not be available to adolescents involved in sex work.