Demand is perfectly elastic

Supply is perfectly elastic

Both demand and supply have unit elasticity

Under all circumstances

A rise in the supply of the foodstuff by EU producers

An increase in the tariff

A rise in the demand for the foodstuff by non-EU consumers

A fall in the supply of the foodstuff by non-EU producers

The quantity consumed in the EU would increase

The quantity of imports into the EU would increase

The incomes of EU farmers would increase

The incomes of non-EU farmers would increase

The price might rise

The price might stay the same

The price might fall

There would be no price because the market would disappear underground

C + D + F.

A.

A + B + E

D + C + B