Lu's family wants to make sure that Lu learns three different languages before he graduates from high school and then he studies abroad in college. Lu's family is seeking to increase Lu's ? a. social capital
b. economic capital
c. definition of the situation
d. cultural capital ​

d. cultural capital

Explanation:

According to the information on the issue, it is correct to say that Lu's family is trying to increase its cultural capital, which can be understood as the set of skills related to the intellect that a person acquires through different experiences, such as new ones learnings of different languages, science, arts, etc.

Cultural capital is important in today's society, where globalization makes competitiveness much greater and accumulating intellectual knowledge can mean advantages for an individual when competing for a job position, for example.

i am pretty sure it is d.