PT 65 S3 Q19

The relationship between the ways in which Canadianand U.S. common law ... ...

The relationship between the ways in which Canadian and U.S. common law and classical Roman law treat blackmail, as described in the passages, is most analogous to the relationship between which one of the following pairs?
(A) One country legally requires anyone working as a carpenter to be licensed and insured; another country has no such requirement.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Dec 2011 LSAT (PT 65): Reading Comprehension