What Has Research Evidence Shown About "Big Box" Prisons Constructed

What has research evidence shown about "big box" prisons constructed by provincial corrections systems and the rates of prisoners' reoffending upon release?

A) The evidence shows a marked decrease in reoffending rates.
B) The evidence shows that "big box" prisons have contributed to higher rates of reoffending.
C) The evidence shows that architectural styles of prisons have NO effect on rates of reoffending.
D) The lack of research makes it difficult to determine whether prison design affects rates of reoffending.