<p>The correct answer is <strong>(A) comply</strong>.</p>
<p>In this sentence, the state's mining law requires mine operators to follow or adhere to local land-use regulations. The word "comply" means to obey or conform to rules, regulations, or requests. Therefore, it is the most appropriate word to complete the sentence.</p>
<p>The other options, "commit," "reply," and "ensure," do not accurately convey the meaning of following or adhering to regulations.</p>
<p>(A) "Commit" means to pledge or dedicate oneself to a course of action, which is not the same as complying with regulations.</p>
<p>(C) "Reply" means to respond to a message or request, which is unrelated to following regulations.</p>
<p>(D) "Ensure" means to make sure or guarantee something, but it does not imply following regulations.</p>