Help I need the answers for all pls​

Who defended slavery and slaves rights?

It is A: John C. Calhoun. He gave a speech to the US Senate in 1837 articulating the pro-slavery political argument.

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Who took the view of the federalists and the power of the national government?

It is B: Daniel Webster. He earned his fame for his supporting in the fed gov and helped ease border tensions.

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Who was known as the “Great Compromiser?”

It is C: Henry Clay. He played a major role in formulating the three landmark sectional compromises: Missouri Compromise of 1820, Tariff Compromise of 1833, etc.