Is the Revenue Act reform, relief or recovery

Recovery

Explanation:

Congress passed the Revenue Act of 1861 as an initial attempt to raise much-needed funds for the war. This act levied the first income tax ever levied on American citizens. The income tax placed a 3% tax on all individuals whose annual incomes were above $800 per year.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering

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