Is the author suggesting that people could be without products they need to survive if companies lack access to rare-metals? Which selection from the article supports your answer ? A Yes: The elements have been designated as 'critical by the U. S. Geological Survey for sectors including national defense" B No : "Rare earths are not actually very rare . They can be found across the Earth's crust Yes They are used in health care , including for surgical supplies pacemakers cancer treatment drugs and rheumatoid arthritis medication ." D No "Rare -earth elements have helped make consumer electronics such as computers and smartphones lighter smaller and more efficient