The correct answer is B.
The solution to the stray cat problem is aggressive spay and neuter policies. This claim is both arguable and defensible because you can defend the claim by using documented spay and neuter policies saying that they work but you can also argue the claim by using the documented spay and neuter policies saying that they don't work.
This is called interpretation.
This is when critics want to find meaning in what an author has written. Analysis is much broader while scanning is incorrect. Evaluation is also inappropriately used here.
