Ella is working on a report analyzing the relationship between parental and teen smoking. She found this graph during her research: Which of the following claims is BEST supported by the evidence in the graph?
A. There appears to be a close connection between smoking rates in adults and teens.
B. Over the past two decades, reductions in teen smoking rates have mirrored the rates for adults.
C. Adult smoking rates had been dropping for more than 30 years before teenagers began reducing their rates.
D. Both teens and adults have severely dropped their rates of smoking and instead have turned to more healthy activities.

i would think b and c

the mass and the sacrifice are similar because jesus christ is the victim and priest in both. the mass is different from the sacrifice in that jesus died for the remission of sins and cannot be  sacrificed again during the mass.

relief sculpture - images are set against a flat background.

a coin is a good example: the inscription, the date, and the figure are slightly raised above a flat surface. the ancient egyptians sometimes carved figures into a flat surface.  

pro: they take significantly less time to make and do not require as much tools or skills as free-standing

cons: not nearly as realistic, as it is not fully 3-d, and does not have the details that a free-standing one does.

freestanding sculptures (also called  carved in the round) are not attached to any  background.   they are 3-dimensional  and fully rendered.