Given the task definition and input, reply with output. 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".

[header] How to avoid dangerous dog toys [title] Check the label. [step] You can avoid a lot of hazardous toys by checking the label for important information. The best toys to purchase are those identified and certified as safe for children under three years old, as this means the toy has been tested for toxicity and doesn't contain any easily detachable parts which can be swallowed easily. <sep> (A) [substeps] It's also a good idea to look for the national origin of the toy. Toys made in north america or europe are more likely to meet general safety standards than those imported in bulk from china or mexico. (B) [substeps] It's a good idea to weigh the toy before purchasing them to evaluate the safety of each toy. For example, if a toy is labelled " safe for children to play with, " it usually will not be sold for very long. (C) Have the manufacturer's back and forth written on the handle : [substeps] Frame. These are fragile and should not be swallowed! . (D) Check the seller's website or the owner's website to look for dealers' information, too. [substeps] Children between the ages of 10 and 15 years old can safely head for a safe dog toy store.
A