People with opposing views of the death penalty reviewed mixed evidence regarding whether it is effective in lowering the crime rate. as a result, their opposing views differed more strongly than ever. this best

Belief perseverance

Explanation:

Belief preservance is defined as the griping or attached tendency of the person on particular thoughts or views even though contradictory information regarding that topic is provided and it discomfirms the thought .People still tend to believe that their view and beliefs are true irrespective of any argument or evidence provided against it.

According to the question, belief preservance is being displayed through the opposing view party's more influenced differentiation after being provided with the mixed evidence and facts on death penalty consequences on crime.This shows they want to stick to their own beliefs even after there are mixed reviews about the topic.

answer; /// the above statement is (true);