C.) New discoveries make the current model inaccurate. Since
science is all about observation and experimentation, it is logical that
whenever new findings are gathered, scientific models must be modified to adapt
to the information. As new ideas and concepts are uncovered, models should be
updated to make them correct.
Answer is: Dispersants
Explanation:
Dispersants keep contaminants (e.g. soot) suspended in the oil to prevent them from coagulating. Anti-foam agents inhibit the production of air bubbles and foam in the oil which can cause a loss of lubrication, pitting, and corrosion where entrained air and combustion gases contact metal surfaces.
So that's why the answer is: Dispersants