Question

the fundamental idea behind natural selection is that, within a particular environment, a genetically influenced trait tends to be more successful and thus able to survive and be passed on. Environmental psychologists examine the ________ that led to survival, and which then led to further reproduction for survival. It doesn't matter to environmental psychologists whether those behavioral tendencies are adaptive in today's environment.

a) behavioral tendencies
b) innate characteristics
c) heritability
d) psychological traits

I am kind of confused but I chose D. Am I right?