How did Charlemagne’s relationship with the Catholic Church benefit both the emperor and the pope?

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

Brainliest to who answers! what is the function of a purchasing cooperative, or co-op?

Thoreau’s actions in civil disobedience and the 1955 bus boycott are similar because both thoreau and the boycotters were