When a company has a net short position in a specific foreign currency, it means that the company has more liabilities than assets in that currency. In this scenario, if the value of the foreign currency appreciates against the dollar, the company's risk increases. This is because the company would need more dollars to purchase the foreign currency to meet its liabilities. For example, if the company has liabilities denominated in a foreign currency that are greater than its assets in that currency (a net short position), and that foreign currency appreciates, then the dollar value of the liabilities increases more than the dollar value of the assets, leading to a net loss.

Choice A is incorrect. If the company has a net short position in a foreign currency, depreciation of that currency would actually decrease risk (the foreign currency liabilities would be worth less in dollar terms).

Choice C is incorrect. If the company has a net long position (more assets than liabilities) in a foreign currency, appreciation of that currency would decrease risk by increasing the value of assets more than liabilities.

Choice D is incorrect. If the company has a net long position in a foreign currency, depreciation of the domestic currency (dollar) against the foreign currency would actually increase risk because the foreign currency assets would be worth more in dollars, which is beneficial for a long position. The risk would increase if the foreign currency depreciates against the dollar, not if the domestic currency depreciates.