: <p>

16.1 ounces  15.9 ounces   16.0 ounces   15.7 ounces  16.3 ounces  <p>

If the post office sends its 1 pound weight back to the
laboratory for another weighing, they would expect to get 16
ounces give or take an amount closest to <p>

a.  0.6 ounces
 b.  0.4 ounces
 c.  0.2 ounces
 d.   .0 ounces