PLEASE HELP ME

What rules did the monroe doctrine set for the united states?

Which of these accomplishments is most closely associated with andrew young? becoming the first african american mayor of atlanta building an international terminal at atlanta's major airport securing atlanta as the host city for the summer olympics in 1996 enforcing non-discriminatory voting policies in atlanta and the suburbs

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.