问题如下：
3. Which of Stephenson’s comment to her supervisor is correct?
选项：
A.Only Comment 1 is correct.
B.Only Comment 2 is correct.
C.Both Comment 1 and Comment 2 are correct.
解释：
C is correct. Comment 1 is correct because regulatory filings, in response to proposed regulations, often identify at least some of the unintended consequences prior to the implementation of the regulation. Comment 2 is correct because the cost of unintended consequences, including both indirect costs and unanticipated implementation costs, can be high.
考点 ： Baisc Concepts of Cost-Benefit Analysis
解析 ： 监管文件可以用来改善监管措施 ， 它在一定程度上是可以识别部分监管措施带来的非故意而为的结果 。 如果发生非故意而为的结果 ， 那么实行监管政策产生的非预期成本也会增加 。 所以两个评论的说法都是正确的 。
请问comment 1的结论是书中哪个知识点？没看到关于监管文件的内容
