I'm not sure which is right , between A and Dplease help meThx

Question 4 (1 point) In an HO model, suppose that two goods are produced: phones and watches. Phones are capital intensive while watches are labour intensive. Suppose that Thailand is labour-abundant while Canada is capital-abundant. What would factor price equalization say about Canada and Thailand post-trade? factor prices will only ever equalize across countries if we allow capital and labour to move freely across countries after opening up to trade. )After opening up to trade, the only way in which each country can benefit from trade is if they do not have the same factor prices. If factor prices are equal across countries before trade, then each country will completely specialize in its comparative advantage good. Post-trade, there is no incentive for capital or labour to move from one country to another because w/r should be the same in both countries