Select all that apply. Roman slaves were: always subject to beating to the point of death.
able to complain about their treatment.
sometimes put into a ring, given swords and forced to fight each other to entertain the public.
could move up in social status.
kept on the outside of the class system.

According to ohrp, a problem is an “unanticipated problem” when it meets which of the following criteria: unexpected, related or possibly related to the research, suggests that the research does not put the subjects or others at greater riskunexpected, related or possible related to the research, suggests the research puts subjects or others at greater riskunexpected, unrelated to the research but still occurring with a subject, suggests the research puts others at greater riskexpected, related or possible related to the research, suggests the research puts others at greater risk