Question

understanding how and why groups differ in their values, behaviors, approaches to the world, thought processes, and responses to situations—in other words, understanding human ____, —gives us tools to reduce interpersonal tensions.
o genetics
o universal features
o innate behavior
o diversity

Explanation:

The text is about differences in values, behaviors etc. among groups. Human diversity encompasses such differences, which when understood can help reduce interpersonal tensions. Genetics focuses on biological inheritance, universal features are commonalities, and innate behavior is in - born behavior, none of which fit the context as well as diversity.

Answer:

diversity