When It Comes to Translating Science into Practice, There Are

When it comes to translating science into practice, there are two main obstacles outlined in the text: one is the researchers' uncertainty about how much research evidence should be accumulated before practical recommendations are made and the other one is _____ practices.

A) the resistance of law enforcement personnel to reforming their
B) the difficulty of passing legislation that would mandate changes in
C) prosecutors' misunderstanding of what research studies mean for their
D) the slow speed of translating scientific evidence into