Answer:
rightward shift in the current supply of corn.
Explanation:
A subsidy is when the government pays individuals or firms either directly through cash payment or indirectly through a targeted tax cut. Subsidy is granted by the government to promote a certain desirable economic or social activity .
If subsidy are given to farmers, their cost of production falls and production and supply increases as a result. This shifts the supply curve to the right.
It is only a change in price of corn that would lead to a movement along the supply curve of corn.
I hope my answer helps you