What is not something a humanist would believe about people? people are more than

The correct answer is: "people can be analyzed into basic parts."

Humanists would never believe that a person can be analyzed in a measurable and objective way or completely understood by diving the whole human being into observable parts.

In opposition, humanism is a philosophical stream that aims to highlight the inner value of human beings, both individually and in groups, by using critical thinking and without involving dogmas or superstitions (therefore, it is a secular movement, not connected to religious beliefs).