Can someone answer this?

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.

The renting agent says i have to rent for at least one year. but i’m not sure how many months i’ll be in town.

Which of the following correctly describes a repurchase agreement? the sale of a security with a commitment to repurchase the same security at a specified future date and a designated price. the sale of a security with a commitment to repurchase the same security at a future date left unspecified, at a designated price. the purchase of a security with a commitment to purchase more of the same security at a specified future date.