The US imposes a 25% tariff on Chinese steel to safeguard jobs in the US steel industry. In which circumstance would this policy be most effective?
- AThe price elasticity of demand for Chinese steel is $-2.5$.
- BThe price elasticity of demand for Chinese steel is $-0.5$.
- CThe price elasticity of supply for Chinese steel is $2.5$.
- DThe price elasticity of supply for Chinese steel is zero.