Which of these events was most likely to have caused people to move to Iowa?

(1 point)
Responses

The United States fought a civil war.

The United States fought a civil war.

Scientists developed new kinds of hybrid seeds.

Scientists developed new kinds of hybrid seeds.

Food shortages in Europe made people go hungry.

Food shortages in Europe made people go hungry.

The state government opened colleges and universities.

Food shortages in Europe made people go hungry.