Which Statement Summarizes the Research on Twins, Looking at a Genetic

Which statement summarizes the research on twins, looking at a genetic basis to criminal behaviour?

A) There is no evidence of a similar behaviour pattern between twins studied to date.
B) There is a stronger similarity in the behaviour of monozygotic twins than between dizygotic twins.
C) Dizygotic twins are found to be less criminal than non-twins studied to date.
D) Only those monozygotic twins raised in criminal households exhibited criminal behaviour patterns.