From the Fact That Emigration Is Often Associated with Significant

From the fact that emigration is often associated with significant costs, Fine concludes that

A) those who are willing (or forced) to leave a state often have substantial interests in living in another state.
B) preventing potential immigrants from settling in a different state can be detrimental to their well-being.
C) closing borders can have significant costs to potential immigrants.
D) all of the above