Concept:Foreign trade has both advantages and disadvantages. A disadvantage is any negative effect it has on a country's economy or local industries.
Explanation:Foreign trade can encourage dumping.
Dumping means selling goods in another country at a price lower than their normal value.
This is a disadvantage because it harms local producers and industries.
Options B, C, and D are all advantages of foreign trade, not disadvantages.
Widening the world market, encouraging specialization, and providing varieties of goods are all benefits.
Answer:A. It encourages dumping.