One way that democracy expanded in the United States in the 1800s was O
A. women were given the right to vote.
B. Native Americans were given the right to vote.
O
C. public education was established in the United States.
D. African American men were given the right to vote.

explanation:

there are two statements that are incorrect.

1. the marshall plan was a lend lease program. it was an economic plan that europe redevelop itself after wwii.

2. einstein didn't really do anything to further the allied cause in building the bomb. he merely sent a letter to fdr telling him (in 1939) that if the united states entered the war, perhaps it would be wise to build the bomb before germany did. i would say this answer is incorrect, but when america entered the war 2 years later, fdr thought it might be a good idea to take einstein's advice.

the 4th choice is definitely so wrong that is likely the single answer of this question

my cultural heritage consists of irish, german, native american, and others.

food and resources were plentiful.

women were encouraged to marry later in life so they could work in factories.