I have an essay to write for my LAW 724 class called "Legal Aspects of International Business". The essay requires us to identify and select a specific legal issue that in part relates to Canada. My professor provided the examples below and I was wondering if I could get someone who is knowledgable on international law/business to help me select a topic along with 3 potential arguments to structure my essay.

1. Whether research and development expenses should be included in the dutiable value assessed for imported goods under the Custom Tariff Act.
2. Whether the invention that allows a customer to purchase an item online with a single click of a mouse is a patentable subject matter under Canadian law.
3. Whether Canada Importation of Intoxicating Liquors Act, 1928 constitutes a violation of GATT Article III:4 (National Treatment Rule).
4. Whether Russia's ban on food and agricultural imports from EU, Canada and US constitute a violation of Article XI (non-tariff barriers) of the GATT.
5. Whether recall of lead containing toys, imported from China, is a violation of GATT Article III:4 (National Treatment Rule).