What are complementary pigment colors?
a any combination of a primary pigment color and another pigment color
b any combination of two primary pigment colors
c any two pigments that combine to make white
d any two pigments that combine to make black

B if I'm wrong plz tell me if I'm wrong (☯‿☯✿)

Explanation:

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.