A. The distinctive feature of tariffs and export subsidies is that they create difference of prices at
which goods are traded on the world market and their price within a local market.
B. The distinctive feature of tarriffs and export subsidies is that they create a difference of prices at
which goods are traded with the world market and their prices in the local market.
C. The distinctive feature of tariffs and export subsidies is that they create a difference between
prices at which goods are traded on the world market and their prices within a local market.
D. The distinctive feature of tarriffs and export subsidies is that they create a difference across
prices at which goods are traded with the world market and their prices within a local market.
Show Hint
Watch for idiomatic expressions like "difference between" vs "difference of" and ensure plural forms match logically.
Option C is grammatically correct and concise. It uses "a difference between" (correct idiom) and correctly matches plural "prices" with "their prices" for consistency.