In the 1960s, many sociologists noticed that economic obstacles alone were insufficient in explaining disparities in the educational attainment of children from different social classes. which concept was introduced to explain these disparities?

Cultural capital was introduced to explain these disparities.

Explanation:

Cultural capital is described as the skills and attributes a human being possess that demonstrate cultural competence and social status. Some of these attributes include knowledge, behaviour education, and style of speech. Cultural capital creates social difference and inequalities. A typical example is the social status of someone who has accumulated knowledge.  

Another contributing factor to class difference is due to race, nationality, religion since they affect access to different knowledge. Furthermore, materials objects that one owns related to education like books and computer, clothing and accessories also describe the cultural difference.

what are the events? you didnt list any

answer; i do believe its (b) 12.5 years of age;