After weeks of protest in Zuccotti Park, New York City's "Occupy Wall Street" divided into two camps: One of higher income protesters, and one of lower-income protesters. Which type of theorist would be most interested in studying the relationship and nature of day-to-day exchanges between the two groups?

Can someone read this article and tell me the 1) key ideas and 2) one key quote (copy and paste the link the article is not to long at all)from

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups.b. a researcher conducts a linguistic study of comments posted on a local public blog.c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression.d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.

Which is the most accurate description of the executive office of the president? groups of advisers who the chief of staff groups of advisers who the president groups of advisers who oversee national security groups of advisers who oversee the economy