Elderly people fear dependency because they lose their independence,
b. their status in society changes.
it necessitates new role behaviors.
all of the above
d.

I would say the answer is D

I hope this helps :)

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.