8. To trade successfully, a landlocked country like Bolivia must
A make treaties with neighboring states that allow trade through their territory.

B make war against neighboring states to gain sea access.

C build airports to bring goods in and out of the country

D build canals that bring water trade into the country.
E appeal to the United Nations to force other countries to let them trade.

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.