Adaptive reactions to fear can be seen in all the following ways except
a.
fear can unite individuals
b.
fear improves sensory perception
c.
fear can lead to irrational behavior
d.
fear can motivate one toward action

My guess is C. Fear can lead to irrational behavior.

Because that seems more negative than adaption.

the answer your looking for is c. : )

the declaration states, “we hold these truths to be self-evident, that all men are created equal, that they are endowed by their creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness….”