Both the Democratic and Whig Parties supported: O A. A national road system.
B. White male suffrage.
O c. A national bank.
D. High tariffs.

A) A national road system

Explanation:

Take note that the Democrats and Whigs didn’t necessarily get along all to well, the Democrats wanted to expand slavery and the Whigs wanted to halt the expansion of slavery into new territories.

One thing they did agree on though was the Whigs’ plans for internal improvements for things such as canals, railroads, harbors, etc.

That is why your answer is going to be A

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