OBJECTIVE COMPLEMENT
is the additional complement refers to the object.
Some action verbs require it to complete the meaning.
It may be a noun or an adjective.
e.g. They elected Mary chairwoman
[The noun chairwoman refers to the d.o Mary and helps to complete the meaning of the verb elected. It is an objective complement.
You made her angry
[The adj angry modifies the d.o her and helps to complete the meaning of the verb made.
Only a few verbs meaning "make" or "consider" take an objective complement: elect, appoint, name, choose, render, make, consider, etc