Based on the population pyramid above, which of the following will pose the greatest demographic challenge to china beginning in 2029?

Aresearcher conducts a focus group to learn about attitudes towards hygiene and disease prevention. two weeks after the focus group, the researcher learns one of the subjects had a heart attack at home and was hospitalized, but made a full recovery. based on dhs regulations, the researcher report this event to the irb? no, this does not need to be reported since the subject had the heart attack when they were home, not at the focus group.no, this does not need to be reported since it is unrelated to participation in the study.no, this does not need to be reported because two weeks have passed.no, this does not need to be reported since the subject recovered.

Which scholars explained the roles of the public and private sectors by comparing it to maneuvering a boat?

Which are components pf a political party? why do we need political parties give reason.