Question

A precious metal is _________________
a.
an element with super and electric and thermal conductivity, high luster, and sensitivity.
b.
a highly sought after dense, shiny, soft precious metal that has been used as money for many centuries.
c.
an highly valuable element with super and electric and thermal conductivity, high luster, and sensitivity.
d.
a soft, sensitive, and lustrous element with the highest conductivity of any element.

Answer 1

c

Reason: A precious metal is a highly valuable element (e.g., gold, silver, platinum) characterized by high luster and generally good electrical and thermal conductivity. The other options are either circular (b) or include incorrect/awkward terms like “sensitivity” or “highest conductivity of any element.”