Can you guys do a ar quiz for me lol if you do thanks give me the title and the answer!

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 three sentences in the story indicate that that the passage is an ex nihilo type of creation story?

Account for differences in percentage population growth rates between more economically developed countries and less economically developed countries