Final answer:
The most appropriate statement for a biological criminologist today is that both genetic and environmental factors contribute to criminality, reflecting the interplay of biology and environment.
Step-by-step explanation:
Given the criticisms of early biological theories of criminal behavior, the most appropriate statement for a biological criminologist today would likely be: C) Both genetic and environmental factors contribute to criminality. This answer reflects the modern understanding that human behavior, including criminal behavior, is the result of a complex interplay between biological predispositions and environmental influences.
Research in fields such as behavioral genetics and epigenetics have shown that while genes certainly play a role in influencing behavior, the environment can alter gene expression and consequently, behavior. Furthermore, socia-environmental factors such as the stability of neighborhoods have been recognized as significant in influencing the rate of juvenile delinquency, as seen in the studies conducted by Shaw and McKay.