Detailed Instructions: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Problem:[header] How to apply advantix for dogs [title] Select the appropriate advantix dosage for your dog. [step] Advantix is not a' one size fits all' treatment, so you will need to make sure that you choose the correct dosage. Advantix comes in four dosage levels according to a dog's weight. <sep> (A) The dose you use should be five times what he was given, which is equivalent to the amount that he gained during his evening swim. [substeps] While advantix will only treat thin dogs, expect your dog to gain one sixth of his weight from the wansh after 12 hours. (B) [substeps] The recommended dose is 300 iu/kb for adult dogs, and 250 iu/kb for smaller dogs. Do not assume that advantix is safe for humans. (C) If you do not know your dog's weight, contact your veterinarian or refer to the paperwork from your dog's most recent veterinary visit. [substeps] Advantix comes in packs of four or six. (D) [substeps] He will generally assess the ease of application by analyzing your dog's urine. If your dog weighs less than 25 lbs, you will most likely need to give her two injections.
Solution:
C