Question

in what way did the political situation in vietnam resemble that of korea in the 1950s?
both vietnam and korea were allied with the united states but then shifted allegiance to the soviet union.
both vietnam and korea were unified, communist countries who then voted to become democracies.
both vietnam and korea were divided and suffered when the south invaded the north.
both vietnam and korea were divided into a communist north and a non-communist south.

Explanation:

In the 1950s, both Vietnam and Korea were split along ideological lines after post-WWII and colonial/post-colonial settlements. Korea was divided at the 38th parallel into Communist North Korea and non-Communist South Korea. Vietnam was divided at the 17th parallel (after the Geneva Accords) into Communist North Vietnam and non-Communist South Vietnam. The other options are incorrect: neither shifted allegiance from the U.S. to the Soviet Union, they were not unified Communist states that became democracies, and in both cases, the North invaded the South, not the reverse.

Answer:

D. Both Vietnam and Korea were divided into a Communist North and a non-Communist South.